[KARAF-3235] Expose karaf itests as a bundle in order to simplify the way of writing itests for end-users

[jbonofre]

No description provided.

[jbonofre]

OK, I understand the problem: the maven-bundle-plugin is executed after the maven-surefire-plugin (for the test). So, the MANIFEST doesn't contain the OSGi headers, that's why tests are failing.
The fix is that the maven-bundle-plugin has to be executed before maven-surefire-plugin. A possible workaround is to split itests in two modules: the bundle (containing KarafTestSupport) and the actual itests (as a jar module). I'm doing the change.

[jbonofre]

retest this please