Add database setup

- Adds a mysql and postgresql database user creation
- Supports master (since database.yml.sqlite no longer exists)
fix typos and add missing database fields in README
Make path to backups and time to keep backups configurable
Configure backup_path and backup_keep_time in default recipe
Create the backup directory
Use string interpolation to set backup_path attribute
Don't use string interpolation. Improve readme for backup path.
Create the backup directory
Install gitolite from gitlab's gitolite fork
Update Changelog, and metadata

* Add Seth's changes, and metadata dependencies
Merge pull request #26 from dscheu/clone_from_gitlabs_gitolite_fork

ISSUE 15

* Install gitolite from gitlab's gitolite fork
* Database back-end changes via @sethvargo
  - Adds a mysql and postgresql database creation
  - Breaking change: developed against githlabhq/master (sqlite no longer supported)

* Gitolite deploy changes via @dscheu
  - Deploy gitlabhq/gitolite, not sitaramc/gitolite
Merge branch 'configurable_backup_path' of git://github.com/dscheu/cookbook-gitlab into dscheu-configurable_backup_path

Conflicts:
	README.md
	recipes/default.rb
Issues #19 #25 #26

Release target, Gitlab CB v0.5.0

* Database back-end changes via @sethvargo
  - Adds a mysql and postgresql database creation
  - **Breaking change**: developed against githlabhq/master (sqlite no longer supported)

* Gitolite deploy changes via @dscheu
  - Deploy gitlabhq/gitolite, not sitaramc/gitolite

* Add configurable backup paths to Gitlab configuration via @dscheu
added condition on node.save to be usable with Chef Solo
corrected my wrong copy paste for node.save

just removed the action :create that was copy-pasted by mistake
corrected my wrong copy paste for node.save

just removed the action :create that was copy-pasted by mistake
Merge pull request #28 from lemieux/master

Simple modification to be compatible with Chef Solo
Use correct rake task