Minor release upgrades:

Apache CXF 2.7.11-2.7.12
Apache CXF.XJCPlugins 2.6.1-2.6.2
Apache Santuario 1.5.6-1.5.7
Apache WSS4J 1.6.15-1.6.16
[WFLY-3751] JGroups UNICAST protocol cannot be used, timeout property has been deprecated and has no effect
Drop all jgroups protocol defaults that we are not actively using in any of the stacks
WFLY-1172 Ability to load taglibs from external modules
WFLY-3754 Final methods do not need to be intercepted
Check for Linux as OS, message platform dependent.
Exclude plugins not understood by Eclipse
Disable testsuite/integration/secman checkstyle until classpath problem can be sorted
Merge pull request #6638 from stuartwdouglas/WFLY-3754
Merge pull request #6636 from stuartwdouglas/EAP6-241
Merge pull request #6624 from langfr/LinuxAIO
Merge pull request #6622 from rhusar/WFLY-3751
Merge pull request #6621 from Gonthim/master