Update README to reference Performance Tuning Doc
Revert "Update README to reference Performance Tuning Doc"

This reverts commit 6703adfe20a77b44df7e4848e28f66af2fcab893.
revert
 - bump node-java dep to 0.2.7
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
Merge branch 'master' into WIP

Conflicts:
	gremlin-node.js