Switch to database_cleaner
Sync refactoring
Make sure that order of sync is correct
Merge pull request #158 from bitzesty/sync_process

Sync process refactoring
Revert "Only run tariff sync once a day at 01:23"

This reverts commit b21cac649e2907a53784fb0f15fdf8ae08441552.
switch from `curb` to `faraday`

Moving to `faraday` because curb sometimes raises *Host Resolution Error*

[pivotal story](https://www.pivotaltracker.com/n/projects/488191/stories/69001522)