Merge branch 'master' of https://github.com/molgenis/molgenis
Merge branch 'master' of https://github.com/molgenis/molgenis
Merge branch 'master' of https://github.com/molgenis/molgenis
Merge branch 'master' of https://github.com/molgenis/molgenis
Merge branch 'master' of https://github.com/molgenis/molgenis
Fix for issue #1722
Fix mysql mref filter
Merge pull request #1748 from erwinwinder/feature/r-script-execution

r script execution
Merge pull request #1750 from erwinwinder/master

Bugfixes
Delete outputfile