Merge pull request #25 from ppat/master

Support for Terms Filter, Range Filter and Source fields to retrieve
#26 Added boost fields to query string
Bumped version for next release
Added search scroll keep alive.
Fixed compile slipup
Update README.md
Update README.md
Fixed compile slipup
Updated analzyers
Added Analysis support
Added Analysis support
Added source generation stubs to analysis
Moved tokenizers and filters into analysis directly
Work on analzyers
Implemented source build for tokenizers
Implemented customization of analzyers
Bumped elastic4s and scala versions
Update README.md
Update README.md
Added analyzers readme