Changed merge strategy to be more generic.
Removed old SRL job.
Removed unnecessary method from RelationPhraseFinder
Added structure learning query expander.
Updated RelationPhraseFinder to return the index of the head phrase.
Updated WordNet relation linker to return pre and post headphrase words.
Removed old files.
Bump SolrJ version.
Updated all relation linkers to return pre and post head words.
Merge pull request #10 from jstnhuang/verbsubstitution

Change all queries to be for strings, substituting the head verb phrase with verb phrases that entail it.