Fix extra space added in beginning of commit message

Removes extra space in merge commit messages. This seems to have been
introduced by the functionality added in 38d8d749d which allows a user
to change a merge commit message.
Fix project limit reached grammer.
Simplify the contributing process and introduce MRO's.
Small edit.
Add optional parameter to list merge requests

Add an optional parameter to list merge requests to restrict the
returned merge requests to those that are "opened", "merged" or
"closed". By default all merge requests are returned. Note that
"all" can be given to explicitly request all merge requests.
Allow to parse heroku-generated database.yml config file.
Add option for disable standard signin.
 Merge branch 'grammer_fix' into 'master'

Grammer Fix

Should read like:

```
Your project limit is 10 projects! Please contact your administrator to increase it
```
Instead of:

```
Your own projects limit is 10! Please contact administrator to increase it
```
Merge branch 'master' into login_page

Conflicts:
	CHANGELOG
Change IRC to official
Merge pull request #6717 from pkgr/fix-database-parsing-gitlab-setup

Allow to parse heroku-generated database.yml config file.
Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce
 Merge branch 'login_page' into 'master'

Add option to disable standard login
Merge branch 'master' of dev.gitlab.org:gitlab/gitlabhq
 Merge branch 'merge-request-officer' into 'master'

Merge Request Officer
 Merge branch 'irc_update' into 'master'

Update status of IRC in PROCESS doc

Just a small fix to update the official status of the IRC channel in the PROCESS.md doc.
Officially supported irc might cause people to expect too much.
 Merge branch 'irc-status' into 'master'

Irc status
More info about GitLab integrations with OAuth

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'master' of dev.gitlab.org:gitlab/gitlabhq