WFLY-1775 Remove embedded EJB implementation
Drop deprecated FlowControl.ignore_synchronous_response property from JGroups protocol defaults.
[WFLY-1578] Update jboss-logmanager
Purge unnecessary dependencies.
copying jgroups.xml and subsystems definitions to use as base for jgroups ec2 config files
using separate commits to get tracking changes easier
generate configuration files suitable for use inside the amazon EC2 compute cloud
disable mcast for NAKACK protocol for more efficient processing; see http://sourceforge.net/p/javagroups/mailman/message/31243991/
add validation tests for the ec2 config files
use a property to specify server standalone-ha.xml file to allow testing with alternate configuration files, i.e. standalone-ec2-ha.xml