OrgMaker 3.0.0

This is the first release of OrgMaker 3.

• Added smoother horizontal scrolling (per note instead of per measure)
• Added metronome option
• Added custom theme support
• Added support for more precise loop regions (per note instead of per measure)
• Fixed "crash" bug when zooming/scrolling while playing song
• Very many bug fixes
• Some small tweaks to scrolling