Add ability to version control working copies
Fixes #594
Add --all option to rose sgc.
Fix to allow multiple working copies from same repository
Merge pull request #616 from arjclark/rose-go-play-fix

rosie go: fix play button
Pluralised array name.
Default use of split.
Merge pull request #617 from arjclark/rose-sgc-all

rose sgc: add --all option
Merge pull request #621 from scwhitehouse/version_control

Version control in rose-stem source working copies