ganga: 6.1.23

ganga/python/Ganga Fixed bugs when requesting negative list indexes in jobs, tasks etc. Fixed bug that created excess shared dir folders. ** Most users are effected by this. Please use 'cleanUpShareDirs()' to remove old empty shared folders from 6.1.23. '--no-mon' now stops task monitoring as well as job monitoring. Improvement to WN scripts to allow the backend to copy non-tarred files to the WN from the shared dir. Cleanup to the code for shutdown. Fixed bug for submission to ARC backend. New test for CREAM backend. Mock tests for LCG and Grid submission. Improvement to locking of objects in registry. Improvement to tracking objects' loaded state. ganga/python/GangaDirac Fixed accessURL for a DiracFile. Returns a list of URLs. ganga/python/GangaAtlas Change defualt for ATLAS_SOFTWARE to CVMFS. ganga/python/GangaPanda Tidy up some code. ganga/python/GangaLHCb Migrated CMake support from GaudiRun app to new GaudiExec app. ** Schema has drastically changed since GaudiRun ** Schema is now stable and is intended to be forwards compatible for all future versions. ** Old CMake test jobs will not load with this version of Ganga. ** Code now found with the other LHCb apps. ** Job splitting fixed. ** Problems with duplication of large files during submit resolved. ** Should support most LHCb workflows. Change to Jenkins tests to source Lblogin.sh from CVMFS rather than setting up the environment by hand