Sub navigation
## What does this MR do?
Styles sub nav
cc @dzaporozhets @skyruler @jschatz1
## What are the relevant issue numbers?
#18058 and #17983
## Screenshots (if relevant)


See merge request !4468
Implement compact side nav
## What does this MR do?
Implements new compact nav design
Note- new navbar icons are in a separate MR (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4268)
## What are the relevant issue numbers?
Closes#18013
## Screenshots (if relevant)


cc @dzaporozhets
See merge request !4447
Add new GitLab CI configuration facade class
## What does this MR do?
This MR is a first iteration of major CI configuration refactoring. See #17139 and #15060 for more details.
## What are the relevant issue numbers?
Closes#17139
See merge request !4462
Use Knapsack to evenly distribute specs
Try to distribute all tests evenly accross all nodes to reduce the testing time of GitLab CE.
This uses high amount of auto-scaled machines.
See merge request !4240
Rename ci_commit in application code
This is third iteration of renaming `[ci_]commit(s)` in application code to `pipeline(s)`.
See merge request !4464
Rename Ci::Commit in specs
This is second iteration of renaming Ci::Commit occurences, this time I try to rename all `let's` and `factories` to match what type of object is created:
1. Rename factories: `ci_[...]_commit_[...]` to `ci_[...]_pipeline_[...]`,
2. Rename all `let's(:[ci_]commit)` to `let(:pipeline)`,
3. Rename all occurrences of `[ci_]commit` to `pipeline` if Pipeline object is created
cc @grzesiek @DouweM
See merge request !4463
License finder gem
Every time a gem is added to the Gemfile, or a gem is updated with a new dependency or change of license, LicenseFinder will check to ensure that the license in use has been whitelisted for use in the project. GPLv2 and GPLv3 libraries are not allowed to be linked-to from non-GPL projects (e.g. the MIT-licensed GitLab CE or proprietary EE), otherwise we're violating the license.
https://github.com/pivotal/LicenseFinder
See also: gitlab-com/operations#164
See merge request !3775