HORNETQ-1343 Added Dedicated JMS Bridge Logger

https://issues.jboss.org/browse/HORNETQ-1343

This patchs adds a new logger for the JMS Bridge.  Previous the bridge
was logging using the HornetQJMSServer log.  The bridge should have it's
own logger as no JMSServer code is needed to run the bridge.
Merge pull request #1868 from mtaylor/HORNETQ-1343

Hornetq 1343 Add dedicated bridge logger.
Add new commit msg format to README

Adds a description of the new commit message format as well as examples
of well formatted commit messages to the README.md.  This is required
to enable developers to quickly identify what the commit is intended to
do and why the commit was added.
ha policy changes and refactoring