Introduce doc support for action return types

Modifying formatting a bit and making reviewboard changes

One more item to clean up

more RB changes

Curly brace to the next line

Fixing the tab problem

Small regex change and a more direct test

Remove old comment

New line removals

RB=356000
BUGS=si-1311
R=gogenc,kjin,kparikh,si-dev
A=gogenc