Add hooks for redmine service
Merge branch 'release/undev_v5.0.0' into develop

* release/undev_v5.0.0: (875 commits)
  Do not show first push author for summary diff
  Add events to header couner
  add description for last_build_status filed in merge request api response
  Show summary diff for default branch correctly
  Add build status into api request
  fix refactoring refs #49632
  Add simmary diff checkbox on digest setings page
  Summary diffs in mails
  fix 404 in public folder
  show description for project protected branches (where we can edit them)
  prevent events loading while loading events refs #49759
  Fix helper for dev env
  Fix
  Fix selectbox size
  Show dangerous changes if user can manage group
  Fix categories list on projects show page
  Temp remove airbrake notification about deploy
  link to branch refs #49632
  Migrate to capistrano 3
  Show message if no entities in digest refs #49637
  ...
Remothe config.threadsafe from env
project highlight
small project improvements refs #47406
Merge branch 'master' into develop

* master:
  small project improvements refs #47406
  project highlight
  Remothe config.threadsafe from env
fix access to project wia team
fix mistake
Actions for digest step 1
toggle actions setting (improve digest settings form)
fix errors
Remove huge hr from digest settings page
Simple refactoring
fix 500 on admin service keys page
fix file cut down for refs #47395
Fix branch select for digest
Fix select
fix send now button
Fix show unselected options
Try fix error with remove branch in summary