Team management via RHC

Spec tests
Updated RHC help for member comment
Updated autocomplete
Update documentation for team command
Include members when fetching teams, improve error messages
Allow unambiguously specifying team by id for rhc members
Fix incorrect feature test
Guard team creation with capability check
Typo
Review comments
Merge pull request #583 from liggitt/rhc_team_management

Merged by openshift-bot
Bug 1090830: Improve help and syntax help for members command
Update autocomplete
Merge pull request #584 from liggitt/bug_1090830_improve_members_usage_help

Merged by openshift-bot