Replace system properties for hornetq-rest config

MessageServiceManager should leverage XMLUtil.replaceSystemProps() to
allow system property expansion if configResourcePath is set.
Merge pull request #772 from gaohoward/master

add javadoc to BroadcastEndpoint
Merge pull request #771 from Spitemare/master

Replace system properties in hornetq-rest configuration
REST documentation updates
Merge pull request #773 from jbertram/master

REST doc updates
removing log.txt committed by accident
Fixing SingleLiveMultipleBackupsFailoverTest...
This test was failing after commit 133ce0c9a81d9d52c39325a1924ad6dc75948cd8 (pulsing updates) as that commit was removing / re-adding the node and ignoring certain updates
version name change proposal
Merge pull request #774 from clebertsuconic/master

Test fixes
HornetQ-1112 : Fix JGroups broadcasting/discovery AS7 integration issue