Check for lrelease-qt4, fixed Issue #113.
Better way to detect dirty commit
Fixed Issue #115 caused by the censorship.
Removed unused imageLoaded signal.
Regex are class-variable now.

No longer re-compile them for every instance.
Fix a missing re.compile
Don't paint invisible smiley animation.
Don't update invisible time label.
Delete release.sh
Updated NEWS.
No longer keep a ChangeLog.
Merge branch 'dev-0.06' into experimental