* add parent_id field to namespaces table to store relation with nested groups
* create routes table to keep information about full path of every group and project
* project/group lookup by full path from routes table
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Now you can fork project into group or personal namespace.
Also I moved fork logic from ProjectsController to own fork resource
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
