Bz1128640

Based on the discussion with Geoffrey , Nick and the previous discussion on https://github.com/jboss-integration/jboss-integration-platform-bom/pull/85

A new PR is raised to replace the pull #85

Please review again. 
 New changes are:
1) squash some trival commit
2)Stick to version.$groupid instead of EAP properties in order to make the properteis more predictable
3)Use version.$groupid.$artifactId for jboss spec artifacts since artifacts contains the specification inforamtion.
4)Add more clarification in README.doc