Add Watch to /pods.
Add mux type to watch package
Add filter to watch
Standardize watch usage in registry/storage objects. Fix up extremely confusing pod test object.
Add a in container exec based health check.
Merge pull request #875 from brendandburns/exec

Add a in container exec based health check.
Address some follow up comments.
Merge pull request #938 from brendandburns/exec

Address some follow up comments.
Merge pull request #906 from lavalamp/watch

Watch improvements.
Update Collaborative Development with link to common mistakes
Merge pull request #942 from vbalazs/update_collab_with_common_mistakes_link

Update Collaborative Development with link to common mistakes