can now start/stop lb-web services remotely (and locally) without ssh
added arguments for lb-web regular and admin ports, and updated README accordingly
- made http client usage uniform (using logicblox TCPTransport method)

- cleaned up some exception handling
predicate info is now automatically extracted as part of the build process
Merge remote-tracking branch 'origin/ratul' into unstable
formatting
removed unused import
added unit test for previously failing nxos neighbor stanza
merging with unstable