Make manifest_url not required for packaged apps in basic form (bug 800341)

Also make cat_form go with the rest of the form to prevent changes
to be saved if a form is invalid (previously, since cat_form was
valid and it saved the addon instance, invalid changes could be
saved as long as the cat_form was valid)
Fix app details editing for rejected/disabled hosted apps (bug 895752)

Drive-by fix, also let developers edit features of rejected apps,
and don't mark the app for re-review if features changed in that
case.
remove cookie test
fix leaky tests by patching the right thing
revert vendor commit
Update "Smartphone-Sized Display" description

Just making this more clear that it's not "phone only", it's "qHD only".
Bring back the waiting time charts for other queues (bug 769705)
Fixed wrapping on reviewer tools homepage
fix zadmin featured apps when no category given
Merge pull request #915 from ngokevin/fixfeatured

fix zadmin featured apps when no category given
do not expect request.TABLET/request.MOBILE in context_processors (for @ngokevin <3)
remove unused helper function in theme test views
try un-SkipTesting theme updatecheck tests (bug 860476)
try to optimize edit theme form (bug 855619)
Merge pull request #914 from ngokevin/perfedittheme

try to optimize edit theme form (bug 855619)
reflect @cvan's context_processor fix
refactor category save on theme edit, don't spawn reupload task every time
redirect users after accepting TOS from developer API page (bug 860111)
remove 404 links to "Unsubscribe" in Marketplace emails (bug 802379)
Revert "try un-SkipTesting theme updatecheck tests (bug 860476)"

This reverts commit ad56af622b4c551bcc73d4124ba6a4c234e92f92.