Merge pull request #2188 from riyad/update-installation-docs

Update installation docs

config/database.yml.example

@@ -1,39 +0,0 @@
-#
-# PRODUCTION
-#
-production:
-  adapter: mysql2
-  encoding: utf8
-  reconnect: false
-  database: gitlabhq_production
-  pool: 5
-  username: root
-  password: "secure password"
-  # host: localhost
-  # socket: /tmp/mysql.sock
-
-#
-# Development specific
-#
-development:
-  adapter: mysql2
-  encoding: utf8
-  reconnect: false
-  database: gitlabhq_development
-  pool: 5
-  username: root
-  password: "secure password"
-  # socket: /tmp/mysql.sock
-
-# Warning: The database defined as "test" will be erased and
-# re-generated from your development database when you run "rake".
-# Do not set this db to the same as development or production.
-test: &test
-  adapter: mysql2
-  encoding: utf8
-  reconnect: false
-  database: gitlabhq_test
-  pool: 5
-  username: root
-  password: "secure password"
-  # socket: /tmp/mysql.sock