fix formatting issue

fix formatting issue with self-signed certificate section
Merge pull request #7717 from bbodenmiller/patch-3

fix formatting issue in installation guide
added omniauth-shibboleth gem for shibboleth support
added documentation for shibboleth omniauth provider
updated changelog
add bunder step to mysql_to_postgresql doc
Merge pull request #7719 from williamherry/improve/improve_mysql_to_postgresql_doc

add bunder step to mysql_to_postgresql doc
Update omniauth-ldap and net-ldap
Fetch the testme repository from gitlab.com

The repository was removed from github.com/gitlabhq.
Merge branch 'testme_url' into 'master'

Fetch the testme repository from gitlab.com

See merge request !1078
Link to the canonical repos.
Merge branch 'use-canonical-repos' into 'master'

Use canonical repos

/cc @dzaporozhets

See merge request !1079
Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce
Revert "Delete mailer queue"
Merge pull request #7724 from gitlabhq/revert-7252-master

Revert "Delete mailer queue"
Merge branch 'update_omniauth_ldap' into 'master'

Update omniauth-ldap and net-ldap

See merge request !1077
Wrap should always be enabled for parallel diff.
Serialize services properties
Update gitlab-grit to 2.6.11

From the gitlab-grit changelog:
  * Suppress 'unkown header' warnings
  * Add process.out to CommandFailed error
Wrap text that overflows the description field.
Merge branch 'gitlab-grit-2.6.11' into 'master'

Update gitlab-grit to 2.6.11

See merge request !1081
Merge branch 'wrap_by_default_for_parallel' into 'master'

Wrap by default for parallel

Fixes #1566

See merge request !1080