Refactor degree sign and date formating
Refactor version-dependant implementation in CurveTrackingPicker
Add white background to CurveTrackingPicker label

Fixes #5
Add graph title

See #4
Better silo button styling

See #4
Make mutex for each DB independent
Fix bug where mouse grapping fail after graph reload
Clear title on graph clearance
Cleanup licensing info
Modify project structure for 3rdparty libs
Add progress layer on week data fetch

This and 6dd8543 3c44390 fix #4
Remove submodule
Add QProgressIndicator as normal dir
Fix QProgressIndicator.pro for Qt 5
Add LGPL 2.1 text to LICENSE
Add tr to graph title string
Merge branch 'dev' into release for v0.3
Add v0.3 release notes