WFLY-886 - JBAS014884: No operation named 'composite' exists at address

- also fix wrongly resolving transformers for micro versions
WFLY-1320 Change CLI GUI icon to WildFly
Upgrade to 1.0.21.Final of EJB client library to bring in the fix for EJBCLIENT-80
Adding some unit test to check that the error message thrown when parsing a War deployment descriptor is human readable
A working jboss-web.xml is parsed to avoid regression.
WFLY-1319 Fix potential security leaks on threadlocal