add sign-in count

add sign-in count to admin section profile view
add HSTS Policy warning

Add warning about HSTS header as it means user will need to provide secure connection access to site for next 24 months from page view. See https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security for more details.
Source repo is now clickable.
Remove test line without effect because no should.
Add a counterexample to 'do it in Ruby'
Merge branch 'be_pragmatic_about_shelling_out' into 'master'

Be pragmatic about shelling out

See merge request !1149
Merge pull request #7834 from cirosantilli/rm-empty-eq

Remove test line without effect because no should.
Add move to html-pipeline-gitlab to changelog
Merge pull request #7946 from Razer6/changelog_entry

Add move to html-pipeline-gitlab to changelog
Add parenthesis to function def with arguments.
Merge pull request #7858 from cirosantilli/def-param-paren

Add parenthesis to function def with arguments.
Merge branch 'master' of github.com:gitlabhq/gitlabhq
Merge pull request #7748 from yglukhov/clickable-source-repo-in-mr

Source repo is now clickable.
Merge pull request #7595 from bbodenmiller/patch-4

add sign-in count
Merge pull request #7664 from bbodenmiller/patch-2

add HSTS Policy warning