implemented basic event detection. Very clearly needs tuning.

-added some non-unit tests to our tests; lets us at least trigger our evaluator.
- time-related variables/constants are now declared as NSTimeInterval
- lots of commented stuff from the java files will be removed later
Merge branch 'master' of github.com:stewjacks/taptester

Conflicts:
	tapstester.xcodeproj/project.pbxproj