Update Italian translation
Merge pull request #259 from mapreri/translation

Update Italian translation
Support C++11
Merge branch 'master' into dev
1. Fix linking error in MinGW
cleanup
cleanup
rename
Initialize ScribbleArea in MainWidow, not Editor
Introduce BaseDockWidget
1. Pencil2D can remember all dock widgets' layout now.
minor
Editor is now QObject, not QWidget.
cleanup
ColorPalette now use .ui file.
Cleanup
Cleanup
minor
Cleanup
Ready to turn a bunch of bool flags to a flag list