ACTIVEMQ6-11 - fix distribution build for Apache

https://issues.apache.org/jira/browse/ACTIVEMQ6-11

Fixed the build so that the correct snapshot and release repositories are used for the releases.

Also corrected the scm and issue management in the pom.
Merge #31 on pom changes
HORNETQ-1381 create new threads under AccessControlContext of the creator of ActiveMQThreadFactory
Merge #33 on porting HornetQ fix, based on https://issues.apache.org/jira/browse/ACTIVEMQ6-53
ACTIVEMQ6-14 Replace JNDI server with client impl
Handful of test fixes
Merge #34 on JNDI changes