Missing bundle headers and maven metadata capabilities in Manifest of org.ros.rosjava_bootstrap.message_generation artifacts

[dearzhaorui]

I am using this repository in a maven project for building bnd maven bundles, but the resolution of my bundle which depends on this artifact will be failed, I found that the content of all versions of the org.ros.rosjava_bootstrap.message_generation artifacts are empty, is there any problem or not, maybe it needs to be updated?

Another question is all artifacts in the ros maven repository don't have a pom file included in the jars, will it affects the use in maven project? And to use the repository, I followed the solution proposed at issue#50, is it correct or not?

In addition, is it possible to release the artifacts in Githun Maven package repository?