Fixed the installation guide for Ubuntu-12.04
Created by: uli-heller
Some of the fixes are required for all platforms, for example the one related to database.yml.postgresql or the one related to the non-existing user "gitlab".
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: uli-heller
Some of the fixes are required for all platforms, for example the one related to database.yml.postgresql or the one related to the non-existing user "gitlab".