Save and SaveAs refactored a little. 

SaveFile is now without side effects. It is now the public API.
The identifiers in the toolkit are now in the alphabetical order.
Bugfix: clearing the toolkit lists when refreshing the display.
Translated 2 more items in the menu.
Translation of the draw area menus.
Pref.java renamed into PreferencesWindow.java
Merge remote-tracking branch 'fizzim/master'

Conflicts:
	src/display/DrawArea.java
	src/display/FizzimGui.java
Translated PreferencesWindow.java
Merge remote-tracking branch 'fizzim/master'
Bundles must be loaded in UTF-8.