Documentation for TabViewerController

Added comments and general cleaning up.
No functional changes

Add comments
Update comments and documentation

added comments
Update comments to Score.java

Update comments and clean up code
Ad tests

Add test
Corrected .gitignore
Merge pull request #88 from dinder-mufflin/justin

Justin - Created comments and general code cleaning
Update files with documentation

Added comments and cleaned files
Merge remote-tracking branch 'origin/master' into justin
Merge pull request #89 from dinder-mufflin/justin

Update files with documentation
Merge remote-tracking branch 'origin/master' into justin
Cleaned up and commented

Merged PicCreator method into Tablature class
Updated a few comments
Updated Documentation for MidiReader and Score

Commenting updates and simple failsafe logic added
Merge pull request #92 from dinder-mufflin/justin

Justin - Created comments and general code cleaning
Documentation added to MidiReader
Merge pull request #93 from dinder-mufflin/jonn

Documentation added to MidiReader
Create comments for Import Controller

only comments were added
Create README.md

Introduction completed, rest to follow
Update README.md