Bug 1064720 - Group overrides lost during scale

Caused the overrides to reset because they weren't being passed to
calculate_ops.
Bug 1064239 and 1064141:
 - Determining what components go on a gear upfront
 - Fetching ssl certs from an alternate haproxy gear, in case the previous one did not return it
Bug 1065133: Add websocket option to haproxy manifest and sanitize uri returned from mod_rewrite.
Merge pull request #4762 from smarterclayton/bug_1064720_group_overrides_lost_in_scale

Merged by openshift-bot
Merge pull request #4761 from abhgupta/abhgupta-dev

Merged by openshift-bot
Merge pull request #4763 from mrunalp/bugs/1065133

Merged by openshift-bot