Merge pull request #552 from kmaglione/langpack-admin-panel-fix

Use addon.versions.no_cache()[0] rather than addon.latest_version after ...
rename authors to team members (bug 826598)
Add `hardware` field to gfx blocklist. (bug 824721)
Fixed @cvan's code

Someone didn't run their tests!
show paid apps even on desktop, not just Gaia
remove "fav-addons-content" code and waffle
Almost fixed @cvan's code on the first try.

womp womp
Fixups for compat update (bug 822809)
Status null for paid app submission (bugs 824762, 822806)
fix author string tests
test fixage and cleanup for @mattbasta
Add bango constants (move to gelato?)
Wire up Bango constants into payment account form (bug 820961)
Use Out Payment currencies for payment accounts
fix mail test
fixup! refactor API, adding more info and payments
refactor API, adding more info and payments
Clean up login.js (again)
add in slumber
Change Devices should go to payments (bug 827855)