RC43: increase limit on plugin calls per page

The maximum number of plugin calls per article is now set to 50

Fix for a few bugs in previous releases

This is a fixup release of rc39:

• fix errors with front end uploading
• set icon location on backend/admin track uploads
• reduce max zoom to 20 to avoid over zooming

Keeping features from rc39:

• pick line color for the GPS trace in the configuration menu
• add distance markers every km (or mile) or further apart (max 25 markers are drawn)

Fixup: SQL for update with icon locations

Some systems throw a data base error for a recent update that keeps track of the track icon locations separately. This is the third attempt to fix it.

RC: add possibility to change/set location of photos

• Add possibility to change/set location of photos in front-end edit mode: the position can be set by clicking the map or by entering coordinates
• Use default Joomla css classes for input fields in track forms

RC: improvements to popups in overview and graphs in plugin

A few more updates:

• Bump openlayers to version 6.15.1
• Improve behavior of popup in the overview map
• When the plugin is configured to show graphs, the selection of graphs for the plugin is now determined by the global settings for the component (com_jtg)

RC: small improvements

This release candidate contains a few minor bug fixes and two new features:

• Possibility to show a button in the track view to generate the plugin syntax and copy it to the clipboard
• The 'category' selection in the track filter on the overview map and tracks list is now a multi-select field (instead of a single selection). It is only shown when the use of categories is enables in the global settings.

RC: field selection in track view, small fixes

The main change in this release are to the 'track info' section in the track view: some new fields have been added:

• total time (duration) and moving time
• average moving speed
  In addition, the administrator can now choose which fields to show and which to hide.

Other small fixes:

• editor in the track form is now the default editor, instead of being hardcoded to tinyMCE
• technical fix when checking whether the 'use pace' flag is set for tracks with multiple categories

Test release: Apply category, level settings to plugin

• The setting for disabling the category and level fields is now also applied to the plugin
• Bug fix for additional translations in the frontentd

Test release: make use of categories optional

This is a test release with some fixes:

• Fix print preview button
• Fix duration calculation with pace input

And further configuration options:

• Possibility to disable categories
• Possibility to disable the use of track difficulty levels

Plugin: multiple invocations per page

Plugin updates:

• add flag for layer switcher
• change the way the map counter is implemented for multiple plugin invocations on a single page