Better support for referencing and closing issues in asana_service.rb (by @mikew1)



See merge request !2302

Tell, Don't Ask.

Prevent duplicate "username has already been taken" validation message

Closes #201 - two-year-old bug, woo! :boom: :tada:

See merge request !2279

Closes #201 - two-year-old bug, woo! :boom: :tada:

* upstream/master: (307 commits)
  Update CHANGELOG
  spinach fix
  Updated allocations Gem to version 1.0.3
  Removed various default metrics tags
  Update CHANGELOG
  Fix "I see current user as the first user" step
  Swap Author and Assignee Selectors on issuable index view
  Update CHANGELOG
  Make sure that is no pending migrations in Gitlab::CurrentSettings
  Added additional config environmental variables to help Debian packaging
  We don't use whenever anymore. Lets remove the schedule file
  Fix project transfer e-mail sending incorrect paths in e-mail notification
  Update CHANGELOG
  Use Gitlab::CurrentSettings for InfluxDB
  Write to InfluxDB directly via UDP
  Strip newlines from obfuscated SQL
  Add hotfix that allows to access build artifacts created before 8.3
  note votes methids implementation
  When reCAPTCHA is disabled, allow registrations to go through without a code
  Downcased user or email search for avatar_icon.
  ...