Test out new colors
Revert "Test out new colors"

This reverts commit 23cbc961a38cad09a26a4e6811def39391319cfc.
Add category files for NSColor
Change fonts on main window
Set up basic color handling
Merge branch 'feature/colors' into develop
update plist
Rewire sounds and repeat option to Prefs panel
Code tidy
Merge branch 'feature/uiupdate' into develop
Change timer logic to handle arbitrary time strings
Update README.md and bump version number
Merge branch 'feature/timerbuttons' into develop
Merge branch 'release/0.7.3'