Merge pull request #558 from ednapiranha/master

fixed scaling of preview screenshots
command + R within desktop b2g now reloads the app!
Add delay to suggestions dismissal (bug 826867)
refactor payments and install
tighten up language in login popup (bug 827943)
fix waiting time column sorting for rereview and escalation queue (bug 826222)
only use feedback popup when the user is logged in (bug 826480)
feedback link in footer should open up modal for authenticated users only (bug 826454)
Fix simulation of nav.mozPay()
Disable changing devices for packaged apps (bug 829607)
webtrends are out of fashion (bug 823136)
Render buttons with the right tag when disabled
Remove straggler discovery_tracking
add notification error if mozPay fails
fixify error pages on desktop (bug 828061)
make an admin view for updating prices (bug 800520)
Add logging to catch invalid JWTs in the act
change -dev manifest to say Firefox Marketplace (bug 831091)
now that login no longer has form elements, restore the transition
footer