ganga-devs/ganga: 7.1.14

ganga/ganga/GangaCore Prompt flushing moved to pre-prompt hook. Prevents the flushing whilst code is input but now the cell needs to execute to flush. #1457 Fix for getting job hostname. #1456 Mass storage file expands environment variables in the config. #1451 Bugfix for automatically removing job output (including remote files) when removing a job. #1445 ganga/ganga/GangaDirac New command to list files (LFNs) in a folder. listFiles('/base/dir', minAge). #1465 Get LFNs for splitters now in new Dirac process to avoid timeout issues and revert to multithread. #1458 ganga/ganga/GangaLHCb Added optional branch specification for checked out packages in prepareGaudiExec. #1459 ganga/ganga/GangaND28