[ARIES-1165] esa-maven-bundle without packaging type "esa"

Patch applied on behalf on Markus Kuppe with many thanks!
This closes pull request #6.
PS. I did reformat some of the changed files as they contained inconsistent
tabs/spaces.


git-svn-id: https://svn.apache.org/repos/asf/aries/trunk@1585964 13f79535-47bb-0310-9956-ffa450edef68