Added contributors' guide
Remove community tag from Python manifests
Updates to admin guide and troubleshooting guide
Merge pull request #4595 from nhr/contributors_guide

Merged by openshift-bot
Keeping tests of same type in same group
Merge pull request #4597 from ironcladlou/dev/python-manifest-tags

Merged by openshift-bot
Merge pull request #4598 from nhr/admin_guide

Merged by openshift-bot
Allow gemspecs to be parsed on non RPM systems (like the rest of cartridges)
Merge pull request #4596 from smarterclayton/allow_local_spec_dev

Merged by openshift-bot