Merge pull request #35 from inolen/master

bump node-java dep to 0.2.7
 - lazy eval engine instance
 - removed custom GremlinJSPipeline object in lieu of newFloat support being added to node-java
Merge pull request #36 from inolen/nojspipeline

lazy eval engine instance, remove GremlinJSPipeline
 - manually manage transactions for graphs implementing the ThreadedTransactionalGraph interface
 - support converting arrays as well as iterables
Merge pull request #37 from inolen/working

automatically manage default transactions
minor README update
 - refactored GremlinJSPipeline
 - cache types in _isType
 - avoid _isType check in getTransaction
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
 - added addVertex, addEdge, newTransaction and shutdown
 - grouped GraphWrapper members by interface, added explicit type check exceptions
 - made .v and .e behave similar to their groovy brothers
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