Changed method linkQueries() to return a List of FormattedOutput rather than being a Unit method.

Other changes include a new toString method on FormattedOutput and implementing a field on KBPQuery
that gets a longer context string that just the sentence.
Merge branch 'master' into humanReadableOutput
Merge pull request #3 from jgilme1/humanReadableOutput

Human readable output
Automatically add src/main/resources in build.sbt
Add benchmarker and answerkey resource.
Merge pull request #4 from rbart/addbenchmark

Add benchmarker
Add BCubed score to benchmark and fix numCorrect bug.
Merge pull request #5 from rbart/addbenchmark

Add BCubed score to benchmark and fix numCorrect bug.
Add simple clustering for freebase linked entities.
Merge pull request #6 from rbart/addbenchmark

Add simple clustering for freebase linked entities.