update HEskimmer code to base on gridvm7 as of 2018-04-12
new features:
automatic protection by setting all new files to 0750 permissions
check_skimmed_files.bash will recover if root execution fails
check_skimmed_files.bash called with argument 'delete' will attempt to delete the offending file. Should not be used as default in the skimmer 'agent'
update HEskimmer code to base on gridvm7 as of 2018-04-12
new features: