Fix for error 500 on create issue for empty repo

Installation order

Why all the dev packages

Document the need for dev packages since Multiple people asked about it.

/cc @marc @jacobvosmaer

Indicate it is a filter

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

Use original gem gollum-lib

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

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

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

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

Update development steps

This reverts commit 8a56e7db.
Because it actually breaks db setup for mysql

Forgot to change dir

/cc @dzaporozhets

Related to https://gitlab.com/gitlab-com/doc-gitlab-com/issues/1

Remove nested dir in docs

Needed for https://gitlab.com/gitlab-com/doc-gitlab-com/issues/1

/cc @dzaporozhets

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

Irc status

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.

Merge Request Officer

Add option to disable standard login

Allow to parse heroku-generated database.yml config file.

Conflicts:
	CHANGELOG

Fix url generation error on hook invalid create

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
```

Namespacefix changelog

Forgot the changelog entry.
Thanks @sytse

Fixes #908

Fix Procfile to be usable in production.