fixed mkdir in project uri resolver such that new directory is sync'ed to disk before continuing.
Merge branch 'master' of github.com:cwi-swat/rascal-eclipse
fixed #417
Proposed fix for issue cwi-swat/rascal#425
Fix for NPE in navigator when switching to Rascal perspective for the
very first time.
* fixed #377
Sometimes an exception is just a value.
Merge remote-tracking branch 'upstream/master'