minor README update
Merge pull request #38 from inolen/pipeline_refactor

refactored GremlinJSPipeline.
This is BRILLIANT! So clean. Nice work.
gremlin console
bumped version 0.2.0
updated authors on README
output more like with gremlin console
Merge pull request #39 from inolen/working

Graph interface additions, .v and .e fixes
 - made .v and .e behave similar to their groovy brothers
 - more aggressive caching in isType