Given group `gitlab` and `gitlab-org` exists. When rename `gitlab` it
will rename `gitlab-org` group route too. This commit fixes it
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
* 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>
