- Added INTERNAL flag (https://issues.jboss.org/browse/JGRP-1599)
- Added internal thread pool to TP (https://issues.jboss.org/browse/JGRP-1599)
- Replaced Message.OOB with Message.Flag.OOB
- Replaced Message.DONT_BUNDLE with Message.Flag.DONT_BUNDLE
- Failure detection protocols now use INTERNAL flag
- Flow control protocols now use INTERNAL flag
- Membership protocols now use INTERNAL flag
- Stability protocol now uses INTERNAL flag
- MERGE3 protocol now uses INTERNAL flag
- Reliable retransmission protocols now use INTERNAL flag
- Sending discovery messages with DONT_BUNDLE (required)