rename var to cope to avoid collision with import
Merge pull request #2175 from andymckay/fixup

rename var to cope to avoid collision with import
Commit from Mozilla Verbatim by user cesperanc@.: 2053 of 2491 strings translated (0 fuzzy).
Moved apps/reviews to mkt/ratings (bug 1021201)
Merge pull request #2155 from diox/mv-reviews

Moved apps/reviews to mkt/ratings (bug 1021201)
Moved apps/versions/ to mkt/versions/ (bug 1021206)
update prod settings to include additional ALLOWED_HOSTS.
add DJANGO_SETTINGS_MODULE to crontab.tpl.
fix tests for special regions
remove "UI Guidelines" and "Deploying Your App" ecosystem pages (bug 1022831)