Added badges for license and release version. 
Added badges for license and release version. 



Note that the badges are linked to the inviwo repository since inviwo-dev is private.

Removed badge for regression test since we should have a different badge for it.

inviwo/inviwo,Sparkier/inviwo,inviwo/inviwo,inviwo/inviwo,inviwo/inviwo,inviwo/inviwo,Sparkier/inviwo,Sparkier/inviwo,Sparkier/inviwo,inviwo/inviwo,Sparkier/inviwo