Update the post-review docs for the latest changes in 0.4.
Update the post-review docs for the latest changes in 0.4.

This covers new parameters, default option configuration, and some
missing docs for things such as the Git --tracking-branch option.

beol/reviewboard,1tush/reviewboard,atagar/ReviewBoard,atagar/ReviewBoard,sgallagher/reviewboard,sgallagher/reviewboard,brennie/reviewboard,chipx86/reviewboard,bkochendorfer/reviewboard,brennie/reviewboard,brennie/reviewboard,Khan/reviewboard,davidt/reviewboard,reviewboard/reviewboard,Khan/reviewboard,davidt/reviewboard,davidt/reviewboard,Khan/reviewboard,Khan/reviewboard,atagar/ReviewBoard,KnowNo/reviewboard,atagar/ReviewBoard,sgallagher/reviewboard,1tush/reviewboard,atagar/ReviewBoard,KnowNo/reviewboard,1tush/reviewboard,sgallagher/reviewboard,atagar/ReviewBoard,bkochendorfer/reviewboard,custode/reviewboard,Khan/reviewboard,custode/reviewboard,atagar/ReviewBoard,custode/reviewboard,brennie/reviewboard,atagar/ReviewBoard,reviewboard/reviewboard,reviewboard/reviewboard,1tush/reviewboard,chipx86/reviewboard,beol/reviewboard,custode/reviewboard,1tush/reviewboard,atagar/ReviewBoard,1tush/reviewboard,beol/reviewboard,bkochendorfer/reviewboard,chipx86/reviewboard,KnowNo/reviewboard,reviewboard/reviewboard,KnowNo/reviewboard,Khan/reviewboard,Khan/reviewboard,Khan/reviewboard,bkochendorfer/reviewboard,beol/reviewboard,chipx86/reviewboard,1tush/reviewboard,davidt/reviewboard,1tush/reviewboard,1tush/reviewboard,Khan/reviewboard