to merge
Merge branch 'master' of github.com:molgenis/molgenis
Merge branch 'master' of github.com:molgenis/molgenis
Merge branch 'master' of github.com:molgenis/molgenis
task resubmission and tasks history implemented
Merge pull request #236 from georgebyelas/master

added ComputeTask resubmission and ComputeTaskHistory