Feature/pt clean up api
What does this MR do?
refactores the API module and transfers model to gateway as asked in #9.
How confident are you it won't break things if deployed?
if tests pass, I am confident. there have been no actual changes.
- added a test, or explain why one is not needed/possible... (tests work and it is only refactoring)
- no unrelated changes
- asked someone for a code review
- joined #foodsharing-beta channel at https://slackin.yunity.org
- added an entry to CHANGELOG.md (description, merge request link, username(s))