-added a POM dependency to allow use of Pairs
-Evaluator: added snippet evaluation and fixed calculation of average
precision
-QueryExpander: fixed bug where query id was not set in ExpandedQuery
Merge branch 'master' of https://github.com/11791-5/project-team5.git

Conflicts:
	project-team05/src/main/java/edu/cmu/lti/oaqa/annotators/Evaluator.java
	project-team05/src/main/resources/analysis_engine/aeDescriptor.xml
fixed call to Utils
Merge branch 'master' of https://github.com/11791-5/project-team5.git