Upgrade Netty to 4.0.19.Final because of many performance improvements.

The are mostly done in the PooledByteBufAllocator.
Merge pull request #1630 from normanmaurer/netty_upgrade

Upgrade Netty to 4.0.19.Final because of many performance improvements.
https://issues.jboss.org/browse/HORNETQ-1320 - added ability for servers to auto register backups and added a new ha-policy config
Merge pull request #1635 from andytaylor/newhapolicy

https://issues.jboss.org/browse/HORNETQ-1320
simply adding logs on JMS Bridge to better understand issues when they happen
Merge pull request #1636 from clebertsuconic/master-fix

just logs
use a constant here
log a warning as the 'todo' indicates
refactor method to remove unnecessary parameters
set the proper policy type
removing unnecessary configuration parameters; using the COLOCATED_REPLICATED template sets all those
fix a few doc issues
removing file committed by accident (I suppose.. it shouldn't be here anyways)
Merge pull request #1642 from clebertsuconic/master-tmp

removing file committed by accident
Merge pull request #1640 from jbertram/master

Various commits for new auto-backup code, etc.
fixing argline so Idea would pick it up... Idea will use these properties every time now
Merge pull request #1647 from clebertsuconic/master-ideafix

fixing argline so Idea would pick it up... Idea will use these properties every time now
fixing arglines for Idea and Junit integration
Merge pull request #1648 from clebertsuconic/master-ideafix

fixing arglines for Idea and Junit integration
https://issues.jboss.org/browse/HORNETQ-1350 / https://bugzilla.redhat.com/show_bug.cgi?id=1096942 - Fixing Clustered Grouping issues
Collaboration Clebert / Justin and Andy