* upstream/master: (233 commits)
  Fix awardable button mutuality loading spinners
  Update CHANGELOG for 8.10.5
  Clean up project destruction
  Small refactor of doc/development/README.md
  Avoid commit lookup on diff_helper
  Removed extra newline from redis_spec.rb
  Used cached value of project count to reduce DB load
  Remove duplicate link_to statements
  Mention add_column_with_default in downtime guide
  Add missing space to generic badge template
  Rename `run` task helper method to prevent conflict with StateMachine
  Add a method in Project to return a cached value of total count of projects
  spellcheck
  Add svg guidelines to ui guide
  Add Changelog entry for Grape upgrade [ci skip]
  Fix Grape tests.
  Retain old behavior
  Update Grape from 0.13.0 to 0.15.0.
  adds second batch of tests changed to active tense
  fixes part1 of files to start using active tense
  ...