Added CaptureThreatsExtractor shell, updated FeatureConstants accordingly
Added comments to CaptureThreats and Trap Extractors
Added constants and comments for CaptureThreatsExtractor
Adding stuff to CaptureThreatsExtractor--better understanding things now.
Merge branch 'master' of https://github.com/vmohan7/Arimaa into neema_capture-threats_feature

Conflicts:
	ArimaaBot/src/feature_extractor/FeatureConstants.java
	ArimaaBot/src/feature_extractor/FeatureExtractorTest.java
CaptureThreatsExtractor's THREATEN CAP feature is *almost* working--see TODOs in the file.
Merge branch 'master' of https://github.com/vmohan7/Arimaa into neema_capture-threats_feature

Conflicts:
	ArimaaBot/src/utilities/MyDB.java
Merge branch 'master' of https://github.com/vmohan7/Arimaa into neema_capture-threats_feature
set up a shell for an "inefficient" implementation of trap-finding before giving up
Fixed bad constant replace with hardcoding -- also += 2 rather than ++ (seems I forgot this...)
...?
changed a typo in Byte.SIZE
Merge branch 'master' of https://github.com/vmohan7/Arimaa into neema_capture-threats_feature
Merged calculatePieceType method between FeatureExtractor and CaptureThreatsExtractor.
Now it is a public static utilities method that both can use. (Returns byte[].)
Added CaptureThreats to FeatureExtractor!
Finished Threatens_Cap feature (with an approximation) -- uses bits :D
Modified tests slightly to work with the finishes.