egads: remove obsolete config
Egads: Setup egads variables
Version bump 6.0.0
Set default deploy roles
Allow new egads deploy:restart task to be required seperately
Add legacy_deploy to support both egads and git-style deploys
Add `-s github=false` to remove dependency on git remote.

NB that local git dir may be out of date.
Safer restart
Remove obsolete deploy_roles
Merge branch 'egads'