add usk rating refused to iarc client (bug 931036)
Don't include the full app serialization in collection reorder errors (bug 951946)

(It's way too noisy, makes logs hard to parse quickly)
Merge pull request #1571 from ngokevin/iarcuskrefused

add usk rating refused to iarc client (bug 931036)
hide header if app has no interactive elements (bug 955828)
remove "enabled-bluevia" and "enabled-paypal" waffle switch
remove "no-redis" waffle switch
remove "accept-webapps" waffle flag and "use_apps" AMO decorator
remove "submit-personas" waffle flag
add label to USK_REJECTED rating
send iarc unique identifier for app title (bug 950216)
Merge pull request #1588 from ngokevin/iarctitle

send iarc unique identifier for app title (bug 950216)
fix usk rating label
Merge pull request #1586 from cvan/waffles

remove old waffles
add "Cache-Control: must-revalidate" to API
set cache headers in CacheHeadersMiddleware only when ?cache querystring set
lighten our Vary headers
add dns-prefetch for CDN in commonplace template
do not remove "API-Filer" from "Vary" header