Updated POM.XML: Include resources in META-INF/

CHANGES:
 - Include Web Resources in JAR as in META-INF/ directory
 - Remove WAR plugin, as it is not used: this is JAR
 - Sync artifact version number, to be the same as ANT build
 - Consider using parent Maven project

I guess AMP has similar problems. I have not checked yet, as I do not use AMP-s (at all).

You should compare produced JAR-s build with Ant and Maven. They should/must be the same size and structure. For more info, I am available on my email.