This throttles the number of UPDATE queries that can be triggered by
calling "touch" on a Note, Issue, or MergeRequest. For Note objects we
also take care of updating the associated "noteable" relation in a
smarter way than Rails does by default.

Previously these were duplicated so they could be different for push/merge,
but this was no longer necessary after
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11232

* master: (96 commits)
  Fetch the merged branches at once
  Merging EE doc into CE
  Avoid using Rugged in Gitlab::Git::Wiki#preview_slug
  Cache commits on the repository model
  Remove groups_select from global namespace & simplifies the code
  Change default disabled merge request widget message to "Merge is not allowed yet"
  Semi-linear history merge is now available in CE.
  Remove repetitive karma spec
  Improve spec to check hidden component
  Rename to shouldShowUsername
  Add KubernetesService#default_namespace tests
  Revert "Merge branch '36670-remove-edit-form' into 'master'"
  Fix bitbucket login
  Remove duped tests
  Add path attribute to WikiFile class
  Make local_branches OPT_OUT
  Clarify the language around External Group membership with SAML SSO to clarify that this will NOT add users to GitLab Groups.
  Added ssh fingerprint, gitlab ci and pages information in an instance configuration page
  Fix the incorrect value being used to set GL_USERNAME on hooks
  Resolve "Remove overzealous tooltips in projects page tabs"
  ...

* master: (297 commits)
  Fix deletion of container registry or images returning an error
  The fog-aliyun gem had a bug in v0.1.0 for file storage creation/update. This merge requests update the gem to v0.2.0 which contains the fix:
  Decrease ABC threshold to 54.28
  Update VERSION to 10.2.0-pre
  Update CHANGELOG.md for 10.1.0
  Document `CI_SHARED_ENVIRONMENT` and `CI_DISPOSABLE_ENVIRONMENT`
  Fix the external URLs generated for online view of HTML artifacts
  Use title as placeholder instead of issue title for reusability
  Fix failure in current_settings_spec.rb
  Clarify the difference between project_update and project_rename
  URI decode Page-Title header to preserve UTF-8 characters
  Update Gitaly version to v0.49.0
  Decrease Perceived Complexity threshold to 14
  Resolve "Remove help text regarding group issues on group issues page (and group merge requests page)"
  Force non diff resolved discussion to display when collapse toggled
  Added submodule support in multi-file editor
  add note about after_script being run separately
  Check for element before evaluate_script
  Merge branch 'master-i18n' into 'master'
  Update Prometheus gem to fix problems with other files overwriting current file
  ...

In API v4 when requesting a branch with an invalid refname shows an
helpful error message: 'The branch refname is invalid'.

* master: (113 commits)
  Introduce new hook data builders for Issue and MergeRequest
  Don't create todos for old issue assignees
  Start adding Gitlab::HookData::IssuableBuilder
  Include the changes in issuable webhook payloads
  Rename the `codeclimate` job to `codequality`
  Don't show an "Unsubscribe" link in snippet comment notifications
  Add QA::Scenario::Gitlab::Group::Create
  Removes CommitsList from global namespace
  Fix wiki empty page translation namespace not being removed
  Fixes mini graph in commit view
  Fix link to new i18n index page
  Update i18n docs
  Move i18n/introduction to i18n/index
  Resolve "Simple documentation update - backup to restore in restore section"
  Remove AjaxLoadingSpinner and CreateLabelDropdown from global namespace
  Move cycle analytics banner into a vue file
  Updated Icons + Fix for Collapsed Groups Angle
  Don't create fork networks for root projects that are deleted
  Remove executable permissions on images to make docs lint happy
  Sync up hard coded DN class in migration
  ...