Use maven-bundle-plugin to generate MANIFEST.MF files with OSGi Metadata

[sgp]

This is related to issue #18, which is closed, and wasn't quite solved by the merge. I'm working on a patch that will fix this issue for good going forward.

The problem I was having was that javax.xml.* was not found by the bundle classloader when used in an OSGi platform such as Apache Karaf (which uses Apache Felix as the OSGi container). This was because the template-driven version of the MANIFEST.MF didn't specify any imports required, so the classloader could not find them.

The maven-bundle-plugin is the way to go here; it "just works", for the most part. See the Apache Maven Bundle Plugin page for more information.