* master: (91 commits)
  refactor emails service
  fix update service
  refactor users update service
  refactor keys controller
  refactor some controllers to make them EE friendly
  fix specs
  fix users update service
  update initializers
  refactor services to match EE signature
  Change recommended MySQL version to 5.6
  Clean merge_jid whenever necessary on the merge process
  Rolling back change to n+1 detection
  Breadcrumbs receives padding when double lined
  Add EEP to headings
  Added some Gitaly docs to `docs/development`
  Check orientation of profile image
  Fixes commit comments in side-by-side diff view
  Update CHANGELOG.md for 10.0.2
  Fix linting errors in locale/index.js
  Update CI parallelization description
  ...