Australis: Rebuild the toolbar button as a subview-based widget (1)
Add support for displaying language tags in widget subview
New localization: German (de)

Credits to Erwin D. Glockner (erglo) from babelzilla.org
Silence a warning from CustomizableUI.jsm
Improve the 32x32 toolbar icon
Don't share the id between the old XUL button and the widget

A shared id triggers, in some cases, weird problems with the
Customization System after migrating forward and back to a older
version of this extension.
Add some migration magic for the toolbar widget
Merge branch 'toolbar-button-as-widget'

Rebuild the toolbar button as a subview-based widget (Firefox 29+)
Slightly better support for an empty system locale preference