add release notes
Autogenerated markdown documentation
Setting version to 0.12.0-M1:

This is a first milestone for 0.12.0. In terms of code, it should be pretty close to the final 0.12.0 version; only docs and similar stuff is left. We will have proper release notes for the stable version, for now take a look at

- [bio4j 0.12.0 milestone](https://github.com/bio4j/bio4j/milestones/bio4j%200.12.0)
Setting version to '0.12.0'
Merge branch 'release/0.12.0-M1'