[jboss-as7-dev] EJB3 security - jboss-app.xml settings

Carlo/Jaikiran/Stuart/Darran, I got a pass at handling the jboss-app.xml settings that can include security information. This partially takes care of https://issues.jboss.org/browse/AS7-1355 (if JBoss Metadata project provides the schema, then this issue is taken care of). The commit is at: https://github.com/anilsaldhana/jboss-as/commit/cced38ef5193af459068d6e99... I had to add @RunAsPrincipal annotation processor. I am ready to put in a pull request. Please provide feedback. Regards, Anil