Support Equinox 3.7.0
Support Felix 3.2.1 and 3.2.2
Support Knopflerfish 3.2.0
wait for 3.7.0 release to resolve the issue. 3.7M5 is used now
I set that to fix version unknown because of a soon'ish release of the project.
Also added support for Felix 3.2.1 + 3.2.2 and Knopflerfish 3.2.0.