Payment processing and CI improvements#44

Draft

olf42 wants to merge 19 commits intodevelopfrom

feature/payment_processing

Commits on Oct 19, 2019

added peewee to requirements
olf42
committed

Commits on Oct 20, 2019

Commits on Oct 22, 2019

add circleci
olf42
committed

Commits on Dec 13, 2019

Merge branch 'develop' into feature/payment_processing
olf42
committed