Autocomplete session grouping
What does this MR do?
Changes typeahead autocompletion to use session based billing for google places API.
This is a temporary workaround for #423 (closed) and should permit us to live a bit longer with the free quota.
Also, I readd a working dev API key for google.
How confident are you it won't break things if deployed?
tested manually in dev, looks good.
Links to related issues
- added a test, or explain why one is not needed/possible...
- 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))