Merge branch 'release/undev_v5.4.0' into develop

* release/undev_v5.4.0: (24 commits)
  Fix search 500
  fix blob indexing
  Fix weekly and monthly workers
  fix mistake
  Make another logic for send digests
  Show personal tab only for gitlab administrator
  cache personal group ids
  add personal tab
  fix mistake
  fix joined groups counter
  fix 500
  In joined groups show only joined
  update owned groups licig
  Add parametrized name field to project_new from
  Improve groups dashboard page
  Groups page step 1
  Add encoding for raw view refs #38156 #26428
  Fix resque-scheduler
  fix rendering end of line for code files refs #50703
  Update redcarper gem
  ...
fix 500 in search
Merge branch 'develop'

* develop:
  fix 500 in search
fix 500 in search
Merge branch 'develop'

* develop:
  fix 500 in search
fix jenkins worker
fix jenkins worker
Fix repository mapping with gem update
Do not remove Gitlab.config.gitlab.repository_downloads_path
Merge branch 'develop'

* develop:
  Do not remove Gitlab.config.gitlab.repository_downloads_path
  Fix repository mapping with gem update
  fix jenkins worker