Cache background color instead of recomputing it every time (most of logic was changed in liblarch_gtk)
Sync start => huge improvement in performance
Merged first improvement of performance
Start tasks in sync mode, not async mode. (there is a bug in tagsidebar)
Solve problems with not refreshing tags
Remove undefined Log
Refresh active tasks on startup to have correct tag count information
Parse due:3 as next 3rd day in month
Pylint is now happy with Date()
Basic refactorization, able to generate PDF
After big refactoring, pylint likes export plugin
Make PEP8 happy
Changelog update
Slightly change icon selector appearance. Also fix a bug: previous icon is not removed in the tag editor when updating it with an iconless new tag
Update changelog before forgetting
test_backend_tomboy works ok now.

But still some questions need to find out how it work.
Refresh title on start
rm tmp when make clean
Refactor the colro selector for simpler structure and allows to add a custom color based on an available one
Awesome performance work by Izidor