Reoganised code in to separate files.
Refactored stuff in to different files.

Probably fixed issues #1 and #2 relatiung to Windows paths.

Implimented issue #3.
Removed old menu entries
Fixed eack track group render... old variable name.
Touched up GUI
Added abiulity to change render mode for song.
Updated README
Actually fixed song location bug
Updated sample finding code again #1 #2
Settings were being created for every song. This has been fixed.
Really fixed issues with storing to instrument