cleanup MySQL doc wording

url -> URL

Increase import timeout from 2 to 4 minutes

This file was missed in https://github.com/gitlabhq/gitlabhq/commit/4535db04b28996baf118bafeb77acd16065e5c5a.

Typo localy -> locally.

Serialize service properties

Word wrap in description

Fixes #1560

See merge request !1082

shibboleth authentication support

Wrap by default for parallel

Fixes #1566

See merge request !1080

Update gitlab-grit to 2.6.11

See merge request !1081

From the gitlab-grit changelog:
  * Suppress 'unkown header' warnings
  * Add process.out to CommandFailed error

Update omniauth-ldap and net-ldap

See merge request !1077

Revert "Delete mailer queue"

Use canonical repos

/cc @dzaporozhets

See merge request !1079

Fetch the testme repository from gitlab.com

See merge request !1078

The repository was removed from github.com/gitlabhq.

add bunder step to mysql_to_postgresql doc

added documentation for shibboleth omniauth provider
updated changelog

fix formatting issue in installation guide

fix formatting issue with self-signed certificate section

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Parallel diff refactor

Refactor side-by-side diff to remove code duplication.

Base the side-by-side diff on inline diff code.

In first iteration:

1. commenting on the side-by-side diff is not possible
1. no expanding of the surrounding code

See merge request !1066

Added search wiki feature

Wrap arguments for `[ -z` in double quotes

See merge request !1071

Add ci to blacklist

See merge request !1075

Close button after added comment

Fixes #1549

See merge request !1070