Dropdowns for clone. Star and Fork with new count areas. Star and Unstarred Works now
Fixes#2876 and #3482
Used existing styles. <br/>
Did not attempt to make pixel perfect as styles already exist. <br/>

See merge request !2156
Fix headers of milestone and snippet show pages
Fix layout, and move "Edit" button to very right just like issue/MR.
Before:


After:


cc @skyruler
cc @rspeicher 8.3 please!
See merge request !2104
[Second try] Implement different Markdown rendering pipelines and cache Markdown
!1602 already got merged in bcd89a58e7, but it would appear the merge commit disappeared because of #3816 (or some other reason).
cc @rspeicher
See merge request !2051
Build related UI fixes
## Before

## After

See merge request !2015
UI: Improve form consistency
Depends on !1953
See the commits for more details, the messages mostly speak for themselves.
# Highlights
## Tag form
Before:

After:

See merge request !1955
UI: Issuable filter tweaks
Depends on !1953
See the commits for more details, the messages mostly speak for themselves.
# Highlights
## Filter bar
Before:

After:

## Bulk edit bar
Before:

After:

See merge request !1963
UI: Use new style for milestone detail page
Depends on !1953
See the commits for more details, the messages mostly speak for themselves.
Before:

After:

See merge request !1966