don't show project with state deleted into user created projects [Fix #67648762]
Merge pull request #611 from devton/bug_fixing_18_03

don't show project with state deleted into user created projects [Fix #6...
create a PaymentEngine::Interface to handle with missing methods on payment engines [# 67561316]
update payment gems and views to use new PaymentEngine style [Fix #67561316]
fix specs
Merge pull request #612 from devton/payment_engines_v2

Payment engines v2
added curator method to find who's the channel curator (I've used the first channel admin here)
using the channel curator as recipient instead of looking for channel email in users [fix #67443864 #67700464]
Merge pull request #613 from diogob/fix_channel_new_project_recipient

Fix channel new project recipient
Merge branch 'master' of github.com:catarse/catarse into inactive_draft_notification