Changed distribution management for kreios profile
Updated tycho dependency for maven 3.1.0 (0.18.0 is not compatible with that maven build)
use the resourceset's container scope in case no containers could be computed for a given resource.

See https://bugs.eclipse.org/bugs/show_bug.cgi?id=416638
Added org.eclipse.jdt.core to manifest
Merge remote-tracking branch 'upstream/develop' into develop