Minor version upgrader

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Create branch for tag

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Allow non-interactive run of upgrade script. ruby script/upgrade.rb FORCE=yes

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Use 'ruby script/upgrade.rb -y'  instead of ENV

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'feature/minor_update_script' of /home/git/repositories/gitlab/gitlabhq