Temporarily fixed some encoding problems for strings in Rexster Console.

Need a better long-term fix here.  This isn't really getting at the root of the problem when dealing with different encodings in the database.
Merge pull request #212 from jordanlewis/master

Need to add sonatype nexus to repositories so Maven will see the orientdb snapshot.
Fixed consistency issues with how Rexster interacted with OrientDB.

Disabled level 1 cache for orientdb and changed the points at which rexster committed transactions.
Refactored RexPro with MsgPack.

Got rid of a lot of byte manipulation.  Simplified the code and generally streamlined.  Still more changes to come to get this really tight.
General code clean-up.
Updated to support latest blueprints changes with push-down predicates.
fixex Query interface.
tweaks to MockVertex.
updated play graphs with latest from blueprints.
Changed path of neo4j/orientdb sample path.
Updated tinkergraph so that it supports Blueprints API change
Upgraded serialized toy graph due to Blueprints API change.
Minor cleanup
Improved error messaging around graph configuration.
Minor refactoring.
Minor refactoring of charset handling.
Initial trial of MsgPack for core of RexPro.
Rexpro is working.
Minor refactoring.
Minor refactoring of extension calls.