use the Boku signup URL from settings
Catch up on AMO table removals (bug 999119)
Only pre-gen APKs for Android apps (bug 1005984)
Allow admins to remove all tags (bug 1012649)

clean_tags already return an empty set when there are no tags,
so that `if` was preventing us from removing all tags from the
the addon.
Merge pull request #2076 from kumar303/android

Only pre-gen APKs for Android apps (bug 1005984)
s/app_types/app_type in API documentation
Merge pull request #2075 from robhudson/migrations

Catch up on AMO table removals (bug 999119)
space after comment
Merge pull request #2080 from andymckay/fix-migrations-2

space after comment
Remove PayPal related code (bug 1012886)
Commit from Mozilla Verbatim by user ibai@oihanguren.com.: 890 of 3763 strings translated (26 fuzzy).
bump(raven): 4.2.3
Merge pull request #2077 from washort/1012886

Remove AMO PayPal code (bug 1012886)
oops missed one
Extract/compile script.  Today's lucky number is 6345.
upgrade dennis to 0.4.2
Merge pull request #2050 from mstriemer/update-boku-signup-docs-url

use the Boku signup URL from settings
Commit from Mozilla Verbatim by user m.araldi.: 3763 of 3763 strings translated (0 fuzzy).
add in altpay (bug 1011122)
Merge pull request #2081 from andymckay/1011122

add in altpay to load prices