Code refactor: Add the missed manager instance into ServiceFactory.
Fixed issue #1
Merge branch 'master' of https://github.com/Kooboo/CMS
Merge pull request #34 from kooboo-jifeng/8b019349dee685431b7935fde9cff60248e572b7

Fixed issue #1
Merge branch 'master' of https://github.com/Kooboo/CMS
Additional changes for issue #1