Add explicit Prototyped API lifecycle transition

Signed-off-by: Rob Hoes <rob.hoes@citrix.com>
Update HTML API docs to take into account new lifecycle info

Signed-off-by: Rob Hoes <rob.hoes@citrix.com>
Update HTML API doc branding

Signed-off-by: Rob Hoes <rob.hoes@citrix.com>
Merge pull request #1643 from robhoes/prototyped-master

Add explicit Prototyped API lifecycle transition