[AS7-6225] Messaging XML parser swallows exceptions

* fix throwing the exception everytime missingRequired() is called
* fix broadcast-group & discovery-group parsing constraints
AS7-6220 Add descriptor roles when building the JBossGenericPrincipal
AS7-6125 Upgrade PicketBox to 4.0.15.Final
[7.1] [AS7-6202] Deploying to a 7.2 DC with a 7.1.2 or 7.1.3 slave fails in OSGi
AS7-4283 File cache store location used by <context-root></context-root> overlaps with location for other contexts
AS7-6245 ClassNotFoundExecption if entity-commands are used for EJB2-CMP entities
7.1 AS7-6186 Mojarra 2.1.16 upgrade breaks Seam 2.3 conversations