added new uilities calss for filter
stabilized hypernym search
Merge remote-tracking branch 'origin/skohliBio2'

Conflicts:
	qa4mre-alzheimer-task/src/main/java/edu/cmu/lti/deiis/hw5/constants/WordNetConstants.java
Merge branch 'master' of https://github.com/ankurgandhe/hw5-team06.git

Conflicts:
	qa4mre-alzheimer-task/src/main/java/edu/cmu/lti/deiis/hw5/constants/WordNetConstants.java