Fix glib import
Fix a crash in facttree if self.vadjustment=None
Pango escape fact description
Fix UnicodeDecodeError in format_range
Merge pull request #179 from gkarsay/master

3 bug fixes
update from /experiments
Wrap StringIO so CLI export works in non-UTF8 bash environments (Fix for Issue #94)
Fix editing of categories and activities
Fix adding categories
Make 3 strings in overview translatable
Clean up list of translatable files