Add OSGi manifest headers

[mattbishop]

It would be great to use these annotations in an OSGi environment like Eclipse and Glassfish. To do so, the manifest needs additional headers added. I will submit a pull request.

[mattbishop]

This patch does two things:

1. Adds the Apache Felix Bundle plugin to the pom file which will generate the appropriate OSGi headers.
2. Change the packaging type from 'jar' to 'bundle' to enable the bundle plugin to join the build. 'bundle' is the same process as 'jar' with the extra step of scanning the classes and generating the OSGi headers into META-INF/MANIFEST.MF.

The only difference between 'bundle' and 'jar' are the extra headers in the manifest.

[arichiardi]

A question, has this fix been deployed on Maven Central?

[io7m]

@arichiardi: No, it hasn't.

Any chance of getting this deployed? I'd do it myself under a different groupId but I'd rather not if there's a chance of getting this one uploaded reasonably quickly.

[io7m]

I've pushed a working OSGi bundle under a different groupId:

http://search.maven.org/#artifactdetails%7Ccom.io7m.jcip%7Cjcip-annotations%7C1.0.2%7Cbundle