diff --git a/readme.txt b/readme.txt
deleted file mode 100644
index caefa85..0000000
--- a/readme.txt
+++ /dev/null
@@ -1,436 +0,0 @@
-=== WP GPX Maps ===
-
-Contributors: bastianonm, Stephan Klein, Michel Selerin, TosattoSimonePio, Kniebremser
-Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=8VHWLRW6JBTML
-Tags: maps, gpx, gps, graph, chart, leaflet, track, garmin, image, nextgen-gallery, nextgen, exif, OpenStreetMap, OpenCycleMap, Hike&Bike, heart rate, heartrate, cadence
-Requires at least: 6.2.0
-Tested up to: 6.7.1
-Requires PHP: 7.3+
-Stable tag: 1.7.11
-License: GPLv2 or later
-License URI: https://www.gnu.org/licenses/gpl-2.0.html
-
-Draws a GPX track with altitude graph. You can also display your nextgen gallery images in the map.
-
-== Description ==
-
-This plugin has, as input, the GPX file with the track you've made and as output it shows the map of the track and an interactive altitude graph (where available).
-
-Fully configurable:
-
-- Custom colors
-- Custom icons
-- Multiple language support
-
-Supported charts:
-
-- Altitude
-- Speed
-- Heart rate
-- Temperature
-- Cadence
-- Grade
-
-NextGen Gallery Integration:
-
-Display your NextGen Gallery images inside the map!
-Even if you don't have a GPS camera, this plugin can retrive the image position starting from the image date and your GPX file.
-
-Post Attachments Integration:
-
-This version is extended by: Stephan Klein and supports displaying all images attached to a post without using NGG.
-
-Try this plugin: https://devfarm.it/wp-gpx-maps-demo/
-
-Support:
-
-If you need help, please use: www.devfarm.it Support Forum
-
-Would you like to help fix bugs or further develop the plugin? On Github you can contribuite easly with your code.
-
-Translations:
-
-Translators are welcome to contribute to the plugin. Please use the WordPress translation website.
-
-The language files in the plugin contain 18 translatable texts for 13 languages:
-
-- Catalan ca
-- Dutch nl_NL
-- English (default)
-- French fr_FR
-- Hungarian hu_HU
-- Italian it_IT
-- Norwegian nb_NO
-- Polish pl_PL
-- Portuguese (Brazilian) pt_BR
-- Russian ru_RU
-- Spanish es_ES
-- Swedish sv_SE
-- Turkish tr_TR
-- Bulgarian bg_BG
-- Slovak cs_CZ
-- Norwegian nb_NO
-- Japanese ja_JP
-
-(Many thanks to all guys who helped me with the translations)
-
-Supported GPX namespaces are:
-
-1. http://www.topografix.com/GPX/1/0
-
-1. www.topografix.com/GPX/1/1
-
-1. http://www.garmin.com/xmlschemas/GpxExtensions/v3
-
-1. http://www.garmin.com/xmlschemas/TrackPointExtension/v1
-
-Thanks to: www.securcube.net, www.devfarm.it
-
-Icons made by Freepik from www.flaticon.com is licensed by Creative Commons BY 3.0
-
-== Installation ==
-
-1. Use the classic wordpress plugin installer or copy the plugins folder to the `/wp-content/plugins/` directory
-
-1. Activate the plugin through the 'Plugins' menu in WordPress
-
-1. Add the shortcode [sgpx gpx=">relative path to your gpx<"] or [sgpx gpx=">http://somesite.com/files/yourfile.gpx<"]
-
-== Frequently Asked Questions ==
-
-= Which map types are available? =
-
-You can use the following map types:
-
-1. OSM1 = Open Street Map (Default setting)
-1. OSM2 = Open Cycle Map / Thunderforest - Open Cycle Map (API Key required)
-1. OSM3 = Thunderforest - Outdoors (API Key required)
-1. OSM4 = Thunderforest - Transport (API Key required)
-1. OSM5 = Thunderforest - Landscape (API Key required)
-1. OSM7 = Open Street Map - Humanitarian map style
-1. OSM9 = Hike & Bike
-1. OSM10 = Open Sea Map
-
-If you use the OpenCycleMap without the API key, a watermark appears on the card: "API Key required".
-
-The Thunderforest maps Outdoors, Transport and Landscape are only displayed with an API Key.
-
-= Which shortcode attributes are available? =
-
-You can use the following shortcodes:
-
-1. gpx: Relative path to the GPX file
-1. width: Map width (Value in percent)
-1. mheight: Map height (Value in pixeln)
-1. gheight: Graph height (Value in pixeln)
-1. skipcache: Do not use cache. If TRUE might be very slow (Default is false)
-1. download: Allow users to download your GPX file (Default is false)
-1. summary: Print summary details of your GPX track (Default is false)
-1. summarytotlen: Print total distance in summary table (Default is false)
-1. summarymaxele: Print max elevation in summary table (Default is false)
-1. summaryminele: Print min Elevation in summary table (Default is false)
-1. summaryeleup: Print total climbing in summary table (Default is false)
-1. summaryeledown: Print total descent in summary table (Default is false)
-1. summaryavgspeed: Print average Speed in summary table (Default is false)
-1. summarytotaltime: Print total time in summary table (Default is false)
-1. mtype: Map types
-1. mlinecolor: Map line color (Default is #3366cc)
-1. zoomonscrollwheel: Zoom on map when mouse scroll wheel (Default is false)
-1. waypoints: Print the gpx waypoints inside the map (Default is false)
-1. startIcon: Start track icon
-1. endIcon: End track icon
-1. currentIcon: Current position icon (when mouse hover)
-1. waypointicon: Custom waypoint icon
-1. showele: Show elevation data inside the chart (Default is true)
-1. uom: Distance/altitude unit of measure
-1. 0 = meters/meters (Default setting)
-1. 1 = feet/miles
-1. 2 = meters/kilometers
-1. 3 = meters/nautical miles
-1. 4 = meters/miles
-1. 5 = feet/nautical miles
-1. glinecolor: Altitude line color (Default is #3366cc)
-1. chartFrom1: Minimun value for altitude chart
-1. chartTo1: Maxumin value for altitude chart
-1. showspeed: Show speed inside the chart (Default is false)
-1. glinecolorspeed: Speed line color (Default is #ff0000)
-1. uomspeed: Unit of measure for speed
-1. 0 = m/s (Default setting)
-1. 1 = km/h
-1. 2 = miles/h
-1. 3 = min/km
-1. 4 = min/miles
-1. 5 = Nautical Miles/Hour (Knots)
-1. 6 = min/100 meters
-1. chartFrom2: Minimun value for speed chart
-1. chartTo2: Maxumin value for speed chart
-1. showhr: Show heart rate inside the chart (Default is false)
-1. glinecolorhr: Heart rate line color (Default is #ff77bd)
-1. showatemp: Show temperature inside the chart (Default is false)
-1. glinecoloratemp: Temperature line color (Default is #ff77bd)
-1. showcad: Show cadence inside the chart (Default is false)
-1. glinecolorcad: Cadence line color (Default is #beecff)
-1. showgrade: Show grade inside the chart (Default is false)
-1. glinecolorgrade: Grade line color (Default is #beecff)
-1. nggalleries: NextGen Gallery id or a list of Galleries id separated by a comma
-1. ngimages: NextGen Image id or a list of Images id separated by a comma
-1. attachments: Show all images that are attached to post (Default is false)
-1. dtoffset: The difference (in seconds) between your gpx tool date and your camera date
-1. pointsoffset: Skip points closer than XX meters (Default is 10)
-1. donotreducegpx: Print all the point without reduce it (Default is false)
-
-= What happening if I've a very large GPX files? =
-
-This plugin will print a small amout of points to speedup javascript and pageload.
-
-= Is it free? =
-
-Yes!
-
-== Screenshots ==
-1. Simple GPX
-1. GPX with waypoints
-1. Admin area - List of tracks
-1. Admin area - Settings
-1. Altitude & Speed
-1. Altitude & Speed & Heart rate
-
-== Changelog ==
-
-= 1.8.00 =
-* MapBox provider: needs ApiKey and brings a lot of new cool features like 3d maps and much more
-= 1.7.10 =
-* Fix security issues
-= 1.7.06 =
-* Fix vulnerability
-= 1.7.05 =
-* Fix NextGen warnings
-= 1.7.04 =
-* Fix php8+ errors
-= 1.7.03 =
-* fix download file link
-* fix error with images exif parsing
-= 1.7.02 =
-* fix admin error
-= 1.7.01 =
-* General: Removed Maptoolkit (code OSM6) map provider. Requested by H.F. (Maptoolkit Managing director)
-* General: Added new map type "Thunderforest - Outddors" (OSM3)
-* Admin: Added admin notices in the dashboard
-* Settings Tab: In the map selection changed to the correct maps provider from "Open Cycle Map"* Settings Tab: to "Thunderforest"
-* Administration Tab: New Tab with the settings "Editor & Author upload" and "Show update notice"
-* Help Tab: In the map selection changed to the correct maps provider from "Open Cycle Map" to "Thunderforest"
-* Output: In the map selection changed to the correct maps provider from "Open Cycle Map" to "Thunderforest"
-* Output: Fixed in map footer for each map, the corresponding map provider is displayed with URL
-* Code: Added PHP version notices, WordPress 5.3 requires PHP 5.6.20
-* Code: Added Missing entries for add and delete options
-* Code: Style for output moved in a seperate CSS file
-* Code: Adjustments a la WPCS
-* Code: Small CSS design optimizations for the tabs
-* Code: Upgrade bootstrap-table to 1.13.2
-* Code: Removed german language file (now over translate.wordpress.org)
-= 1.7.00 =
-* Added: Authors can upload GPX tracks in a folder called as *your user name*, inside [../wp-upload dir/gpx/[*your user name*] (thanks to wildcomputations)
-* Added: Authors an Admins can see the current values for shortcodes in help tab
-* Added: Button to instant copy the shortcode of the selected GPX file in the tab track
-* Added: different size logos for the plugin store (icon.svg, icon128x128.png and icon256x256.png) [inside ../plugins/wp-gpx-maps/assets]
-* Changed: Settings tab is for non-Admin users is not more visible
-* Tweak: Help tab is easier to read
-* Tweak: Plugin is now complete translatable (Backend + Frontend)
-* Tweak: WordPress coding standards
-* Upgrade: Leaflet to 1.5.1
-* Upgrade: leaflet.fullscreen to 1.4.5
-* Upgrade: Chart.min.js to 2.8.0
-= 1.6.07 =
-* resolve admin error
-= 1.6.06 =
-* Added average values under the graph (thanks to cyclinggeorgian)
-= 1.6.04 =
-* NGG gallery is working
-* Getting HR, Cad and Temp working again (thanks to cyclinggeorgian)
-* Fix javascript errors
-* Fix multiple traks gpx
-= 1.6.03 =
-* Fix syntax error causing graph not to display (thanks to nickstabler)
-= 1.6.02 =
-* Resolved errors with start and end icons
-= 1.6.01 =
-* Removed Gogole maps. Leafletjs instead.
-* -- NextGen Gallery is not working, due next gen image format changed -- I'll fix soon
-= 1.5.05 =
-* renamed javascript functions to avoid collision with other plugins
-* reduced chart line thickness
-= 1.5.04 =
-* fix uom
-* fix file not found
-= 1.5.03 =
-* fix random error
-= 1.5.02 =
-* Security improvements
-= 1.5.01 =
-* Improved security
-* Included javascript
-* Multiple file upload
-* Implemented sorting in file list
-* Renamed internal function to improve wp compatibility
-= 1.5.00 =
-* replaced highcharts with chartjs. This is a forced choice due highcharts license issue, view: https://devfarm.it/wordpress-plugin/wordpress-plugin-directory-notice-wp-gpx-maps-temporarily-disabled/
-= 1.3.16 =
-* Added Norwegian nb_NO translation (thanks to thordivel)
-* Added Japanese ja_JP translation (thanks to dentos)
-= 1.3.15 =
-* Switched to HTTPS where possible (thanks to delitestudio)
-= 1.3.14 =
-* Added Thunderforest Api Key on settings: for OpenCycleMap
-= 1.3.13 =
-* Added google maps api key on settings
-* Removed parameter 'sensor' on google maps js
-* Added unit of measure of speed for swimmers: min/100 meters
-= 1.3.12 =
-* Fix incompatibility with Debian PHP7 (thanks to phbaer) https://github.com/devfarm-it/wp-gpx-maps/pull/5
-= 1.3.10 =
-* Improved german translations (thanks to Konrad) http://tadesse.de/7882/2015-wanderung-ostrov-tisa-ii/
-= 1.3.9 =
-* Retrieve waypoints in JSON, possibility to add a custom marker (Changed by Michel Selerin)
-= 1.3.8 =
-* Improved Google Maps visualization
-= 1.3.7 =
-* NextGen Gallery's Attachment support. Thanks to Stephan Klein (https://klein-gedruckt.de/2015/03/wordpress-plugin-wp-gpx-maps/)
-= 1.3.6 =
-* Fix: remote file download issue
-* Fix: download file link with WPML
-* Improved cache with filetime (thanks to David)
-= 1.3.5 =
-* Fix: Garmin cadence again
-* Fix: WP Tabs
-= 1.3.4 =
-* Fix: Garmin cadence
-* Infowindows closing on mouseout
-= 1.3.3 =
-* Add feet/Nautical Miles units (thanks to elperepat)
-* Update OpenStreetMaps Credits
-* WP Tabs fix
-= 1.3.2 =
-* fix: left axis not visible (downgrade highcharts to v3.0.10)
-* fix: fullscreen map js error
-= 1.3.1 =
-* fix: http/https javascript registration
-* fix: full screen map css issue
-= 1.3.0 =
-* Speed improvement
-* Rewritten js classes
-* Added Temperature chart
-* Added HTML5 Gps position (you can now follow the gpx with your mobile phone/tablet/pc)
-= 1.2.6 =
-* Speed improvement
-= 1.2.5 =
-* Added Catalan translation, thanks to Edgar
-* Updated Spanish translation, thanks to Dani
-* Added different types of distance: Normal, Flat (don't consider altitude) and Climb distance
-= 1.2.4 =
-* Added Bulgarian translation, thanks to Svilen Savov
-* Added possibility to hide the elevation chart
-= 1.2.2 =
-* Smaller map type selector
-* Fix: Google maps exception for NextGen Gallery
-= 1.2.1 =
-* Fix: NextGen Gallery 1.9 compatibility
-= 1.2.0 =
-* NextGen Gallery 2 support
-* NextGen Gallery Pro support
-= 1.1.46 =
-* Added meters/miles chart unit of measure
-* Added Russian translation, thanks to G.A.P
-= 1.1.45 =
-* Added nautical miles as distance (Many thanks to Anders)
-= 1.1.44 =
-* Added Chart zoom feature
-* Some small bug fixes
-= 1.1.43 =
-* Added Portuguese (Brazilian) translation, thanks to André Ramos
-* new map: Open Cycle Map - Transport
-* new map: Open Cycle Map - Landscape
-= 1.1.42 =
-* qTranslate compatible
-= 1.1.41 =
-* Added Polish translation, thanks to Sebastian
-* Fix: Spanish translation
-* Minor javascript improvement
-= 1.1.40 =
-* Improved italian translation
-* Added grade chart (beta)
-= 1.1.39 =
-* Added French translation, thanks to Hervé
-* Added Nautical Miles per Hour (Knots) unit of measure
-= 1.1.38 =
-* Fix: garmin gpx cadence and heart rate
-* Updated Turkish translation, thanks to Edip
-* Added Hungarian translation, thanks to Tami
-= 1.1.36 =
-* Even Editor and Author users can upload their own gpx. Administrators can see all the administrators gpx. The other users can see only their uploads
-= 1.1.35 =
-* Fix: In the post list, sometime, the maps was not displaying correctly ( the php rand() function was not working?? )
-* Various improvements for multi track gpx. Thanks to GPSracks.tv
-* Summary table is now avaiable even without chart. Thanks to David
-= 1.1.34 =
-* 2 decimals for unit of measure min/km and min/mi
-* translation file updated (a couple of phrases added)
-* File list reverse order (from the newer to the older)
-* nggallery integration: division by zero fixed
-= 1.1.33 =
-* Decimals reducted to 1 for unit of measure min/km and min/mi
-* map zoom and center position is working with waypoints only files
-* automatic scale works again (thanks to MArkus)
-= 1.1.32 =
-* You can exclude cache (slower and not recommended)
-* You can decide what show in the summary table
-* German translation (thanks to Ali)
-= 1.1.31 =
-* Fixed fullscreen map image slideshow
-= 1.1.30 =
-* Multi track gpx support
-* Next Gen Gallery images positions derived from date. You can adjust the date with the shortcode attribute dtoffset
-* If you set Chart Height (shortcode gheight) = 0 means hide the graph
-* Fix: All images should work, independent from browser cache
-= 1.1.29 =
-* Decimal separator is working with all the browsers
-* minutes per mile and minutes per kilometer was wrong
-= 1.1.28 =
-* Decimal and thousand separator derived from browser language
-* Added summary table (see settings): Total distance, Max elevation, Min elevation, Total climbing, Total descent, Average speed
-* Added 2 speed units of measure: minutes per mile and minutes per kilometer
-= 1.1.26 =
-* Multilanguage implementation (only front-end). I've implemented the italian one, I hope somebody will help me with other languages..
-* Map Full screen mode (I'm sure it's not working in ie6. don't even ask!)
-* Added waypoint custom icon
-= 1.1.25 =
-* Added possibility to download your gpx
-= 1.1.23 =
-* Security fix, please update!
-= 1.1.22 =
-* enable map zoom on scroll wheel (check settings)
-* test attributes in get params
-= 1.1.21 =
-* google maps images fixed (templates with bad css)
-* upgrade to google maps 3.9
-= 1.1.20 =
-* google maps images fixed in Yoko theme
-= 1.1.19 =
-* include jQuery if needed
-= 1.1.17 =
-* Remove zero values from cadence and heart rate charts
-* nextgen gallery improvement
-= 1.1.16 =
-* Cadence chart (where available)
-* minor bug fixes
-= 1.1.15 =
-* migration from google chart to highcharts. Highcharts are much better than google chart! This is the base for a new serie of improvements. Stay in touch for the next releases!
-* heart rate chart (where available)
-= 1.1.14 =
-* added css to avoid map bars display issue
-= 1.1.13 =
-* added new types of maps: Open Street Map, Open Cycle Map, Hike & Bike.
-* fixed nextgen gallery caching problem
-= 1.1.12 =
-* nextgen gallery display bug fixes
-
-== Upgrade Notice ==