2.4.5-beta 1

Adoption by Linuxgurugamer
Replaced toolbar button code with the ToolbarController (replaced about 1000 lines of code)
Fixed stock icon being badly formatted
Removed Blizzy toolbar option from settings
Fixed test of invalid config xml file, now recovers properly from bad file
French translation updated
Changed directory structure of source
Renamed Plugin directory to Plugins
Default behaviour for toolbar button now defaults to the stock toolbar
Method of controlling which toolbar has the button now controlled by the ToolbarController
Moved textures into PluginData directory
Downgrade code where it was using Null-coalescing operators