Merge pull request #116 from kraman/isolate_fixes

Fixes for isolate container for differentes in OS (RHEL/Ubuntu)
Add deploy command
Merge pull request #119 from smarterclayton/add_deploy

Add deploy command
Allow PATCH /environment/:id to populate an empty file
Merge pull request #120 from smarterclayton/allow_env_patch_to_create

Allow PATCH /environment/:id to populate an empty file
Fix some filesystem permissions so sshd can run gear-auth-keys-command