Add synonyms.bag

This is a simpler way to do query expansion for certain use cases. Instead of splicing the synonym into the original query text, this simply appends a single query for the synonym. IE

dog => pooch
dog => hound
bite => chomp
bite => gnash

q=dog bite
would yield:
dismax(dog bite) OR dismax(hound) OR dismax(chomp) OR dismax(gnash)
Add synonyms.bag documentation
Ilucidate further
Update README.md
Finish writing description text
Only bag synonyms, add basic test
Reinstate teardown
Update pom version.
oferge branch 'master' of https://github.com/o19s/hon-lucene-synonyms
merge with master branch
modify README
modify README