Fix project re-importing on load

Issue stems from the waveform not being saved after it was generated.
If the user closed the project without saving, it would not be saved,
and therefore regenerated again on project load.
Delete unused classes
Add validation checks to wave file reading

Also solved the mystery of the extra two bytes. They happen to be extra
params put there for some reason!
Fix calculation of audio duration

Program should now find spaces throughout the entire movie.
Merge branch 'valdev'

Conflicts:
	LiveDescribe/LiveDescribe/Managers/ProjectLoader.cs

Wierdest merge ever.