Update landfill urls
Add --site option to install_landfill
Merge branch 'master' of https://github.com/mozilla/zamboni into update-landfill-urls

Conflicts:
	apps/amo/management/commands/install_landfill.py
redirect Reference Apps ecosystem pages to MDN pages (bug 1022029)
remove `shared_url` helper and tests (bug 1024185)
run zamboni on 2600 by default (bug 1021991)
Merge pull request #2198 from cvan/rm-shared-url

remove `shared_url` helper and tests (bug 1024185)
remove dead MAMO/MMMO mobile code (bug 1024136)
Merge pull request #2195 from cvan/lamo-mamo-mmamo

remove dead MAMO/MMMO mobile code (bug 1024136)
remove django-mobility (bug 1019516)
Merge pull request #2196 from cvan/no-mobility

remove django-mobility (bug 1019516)
Refactor transaction status tests (bug 1024751)
Merge pull request #2203 from JaredKerim-Mozilla/1024751

    Refactor transaction status tests (bug 1024751)
Updated app review wording and rating exclusions (bug 1003919)
remove `remora_url` (bug 1024231)
fix tests
rename group_id to group for feed coll membership
remove django-mobility test (bug 1019516)
Merge pull request #2183 from cvan/mdn-ref

redirect "Reference Apps" ecosystem pages to MDN pages (bug 1022029)
Commit from Mozilla Verbatim by user cesperanc@.: 2191 of 2491 strings translated (0 fuzzy).