clean up settings (bug 999774)
clear out secret key and some pass flake8 (bug 999774)
change to sane default, but raise an error if its unchanged on prod (bug 999774)
Merge pull request #2102 from andymckay/999774

clean up settings (bug 999774)
Fix site settings imports after lib/settings_base move
Commit from Mozilla Verbatim by user markh@babelzilla.org.: 2491 of 2491 strings translated (0 fuzzy).
Merge branch 'master' of ssh://github.com/mozilla/zamboni
Commit from Mozilla Verbatim by user kohei.yoshino@gmail.com.: 2457 of 2491 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user unghost@mozilla-russia.org.: 1874 of 2491 strings translated (90 fuzzy).
featured app image hash (feed)
allow ordering of feed stuff (feed)
Commit from Mozilla Verbatim by user ouesten.: 2491 of 2491 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user ibai@oihanguren.com.: 850 of 2491 strings translated (10 fuzzy).
Merge branch 'master' of ssh://github.com/mozilla/zamboni
Commit from Mozilla Verbatim by user ibai@oihanguren.com.: 851 of 2491 strings translated (10 fuzzy).
Commit from Mozilla Verbatim by user ibai@oihanguren.com.: 869 of 2491 strings translated (10 fuzzy).
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 2491 of 2491 strings translated (0 fuzzy).
Expose 'is_offline' everywhere in the API, not just in search (bug 861303)
unique feed slugs (feed)
upstream feed branch index.html (feed)