added datameer_copy.pl
updated datameer_copy.pl
added datameer_git.pl
renamed datameer_copy.pl to datameer_migrate.pl
renamed datameer_migrate.pl to datameer_migrate_config.pl
updated lib
renamed datameer_git.pl to datameer-git.pl
renamed datameer_migrate_config.pl to datameer-migrate-config.pl
added --Xmx option to increase the Heap size when dealing with very large numbers of files (hundreds of thousands)