Show N/A for free with in-app (bug 887922)
Expand the mocks a bit for non ES tests.

We found that we were doing a lot of work in
WebappIndexer.extract_document and then that was getting sent to a
mocked ES. So let's expand this a bit to mock the document extraction as
well.
Fix tests broken by fixture changes in a5afb23

(The default version _developer_name is no longer empty)
Add ES_USE_PLUGINS to marketplace dev settings
fix "Receipt for {0}" string (889019)
Updated app lookup to use new index
Removed outdated test
Put back the response that was mistakenly removed
mkt.lookup test fix and refactorings
ngoke's first whitespace commit! fistpump
Add payment flow content per bug 861968

I nested some <ul>s and added some <ol> numbered steps.
to trigger fireplace push
remove filters.styl (bug 880767)
remove detail.styl (bug 880767)
remove categories.styl (bug 880767)
remove *account.styl - for @spasovski (bug 880767)
Added Spanish ToS (bug 887367)
Remove LESS docs (we don't have LESS anymore)
add l10n comment
Update AMO with refreshed Firefox logo (bug 884905)