Updated etc/jre.properties to make CXF work

In this commit I've also changed the Karaf integration test
to make use of the custom distribution we are building. This
makes the test a lot more relevant and useful.
Upgraded to Karaf 2.2.10. Fixes #134
Merge pull request #135 from andreisavu/api-step-1

First step towards adding a REST API. Part of #119
Wip