Strip new lines from emails' subjects (bug 812960)

https://bugzilla.mozilla.org/show_bug.cgi?id=812960
Merge pull request #1796 from davidbgk/812960-multiline-emails-subjects

Strip new lines from emails' subjects (bug 812960)
Remove unused styles from payments status (bug 976543)

https://bugzilla.mozilla.org/show_bug.cgi?id=976543
Merge pull request #1804 from davidbgk/976543-remove-payments-css

Remove unused styles from payments status (bug 976543)
Alias "gb" region to "uk" (bug 973883)
Use parse_region
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 4985 of 4985 strings translated (0 fuzzy).
Merge branch 'master' of ssh://github.com/mozilla/zamboni
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 4985 of 4985 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 4985 of 4985 strings translated (0 fuzzy).
Merge pull request #1800 from diox/geoip-uk-gb

Alias "gb" region to "uk" (bug 973883)
update legal docs
Reverts 877e494
Merge pull request #1807 from chuckharmston/deploy_revert_415c30a

Reverts 877e494
add 403 and skip_cache to comm thread app view