Implement Fairteiler gateway

Refs https://gitlab.com/foodsharing-dev/issues0/issues/344

Still needs a bit of testing, otherwise I'm quite happy with it.

changed the description

added 2 commits

• eac9ebea - fix fairteiler add
• 0a5f20ec - fix code style

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unmarked as a Work In Progress

changed the description

added 22 commits

• 0a5f20ec...2d40e62e - 14 commits from branch master
• bc72018f - add database helpers
• f69374a7 - introduce FairteilerGateway
• 5c2ab451 - add some tests
• 5a814203 - fix some stuff
• bfb15faf - remove unused code
• cb8b2ceb - clean up a bit of code
• 2e112bdb - fix fairteiler add
• c6c2e029 - fix code style

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added 1 commit

• 78ebbd0a - fix test

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added 1 commit

• 63413d12 - fix positional values

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added 1 commit

• b43804a3 - fix codestyle

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added 15 commits

• b43804a3...3773c3bf - 4 commits from branch master
• 579e90cf - add database helpers
• 7b2fb585 - introduce FairteilerGateway
• cb3d03da - add some tests
• a40f204a - fix some stuff
• 4cc8aecb - remove unused code
• 7d5cb5a9 - clean up a bit of code
• 896cc14c - fix fairteiler add
• dc8e76d2 - fix code style
• 9554cb9f - fix test
• f151239a - fix positional values
• 13a131fa - fix codestyle

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added 1 commit

• 3ba7afee - Implement more PDO gateway classes and helpers

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added 1 commit

• 53f75f6e - Codestyle fixes

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added 1 commit

• f4122c46 - Deprecate Database::execute() and no return val

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approved this merge request

resolved all discussions

merged

changed the description

changed milestone to %Hackweek February 2018