Update Error Reporter to receive messages from RavenJS (bug 942912)

- Receive URL encoded JSON messages from RavenJS
- Pass out through Raven client
- Updated test
Commit from Mozilla Verbatim by user steekid.: 4985 of 4985 strings translated (0 fuzzy).
Merge branch 'master' of ssh://github.com/mozilla/zamboni
Update Russian L10n
Commit from Mozilla Verbatim by user auzelac91.: 1819 of 4985 strings translated (0 fuzzy).
Merge branch 'master' of ssh://github.com/mozilla/zamboni
fix theme link (bug 968503)
add ReadUnreadFilter to note view set (bug 970223)
fix highlighting of selected pending theme tab (bug 968503)
Bug 970938 - Update sr-Latn with sr-Cyrl converted running icu4c script
update docs from marketplace-docs repository
Update identifiers for ValentinesDay (bug 970500)
Merge pull request #1753 from clouserw/updatedocs

update docs from marketplace-docs repository
Merge branch 'master' of ssh://github.com/mozilla/zamboni
fix themes in promo
fix exclude unrated games + usk rating refused apps (bug 958319)
Merge pull request #1754 from ngokevin/master

fix themes in promo
Merge pull request #1747 from ngokevin/iarcusk3

fix exclude unrated games + usk rating refused apps (bug 958319)
remove content ratings in admin settings form (bug 969545)
remove old AER games logic due to IARC (bug 968494)