Update markdown reference to external issues

1. Issue may be not only in jira.
2. Rewrite method for support different external issue trackers
change bash to sh
fix bash-ism
Update markdown.rb

Fix mistake by @qqshfox report
fix link_to by @bwrsandman

Add missing '#'
add current sign-in date

add current sign-in date to admin section profile view
add missing config files to check during release process
Adding in snippet search functionality

http://feedback.gitlab.com/forums/176466-general/suggestions/5529795-search-though-snippets
Changing some formatting for the Hound, modifying some UI text
Mention that people should use the CentOS tools.
Added search wiki feature
Add comment to merge request when new push happens

It allows track when user added new commits to existing merge request

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Pluralize commit text for note when push to existing MR

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'mr-push-note' into 'master'

Add comment to merge request when new push happens

Fixes #1494

See merge request !1065
Added cmake and pkg-config as build dependency for pkgr
Updating to persist a params snippets variable
Cleaning for the hound
Merge pull request #7699 from mmrvka/master-pkgr

Added cmake and pkg-config as build dependency for pkgr
Fixed houndci complaining over too long lines
Remove parent spacing. Fixes #7505