Initial implem for listener to automatically clean up temp files
Removed 'bug' that results in ERROR displays even if there is correct saving in database
fix the bug where variates are not saved consistently
Added if checking to file deletion
Merge remote-tracking branch 'origin/master'
Merge branch 'master' into angular
GCP-5838
Merge branch 'master' into angular
GCP-5837
Merge branch 'master' into angular