add "Contribute" to AMO footer
edit listing page for themes and themes on addon dashboard (bug 679059)
desktop screenshot thumb handles (bug 784125)
modularize devreg/payments code
add Bango Terms of Agreement to payments enrollment flow (bug 831139)
allow developers to use accounts for which they have accepted the TOS (bug 834544)
fix devhub tests
fix uuid vs transaction_id logic
call to solitude when requesting refund (bug 821890)