First step towards a fully fledged upgrading machine

git-svn-id: http://sunny.svnrepository.com/svn/sunny-side-up-general/upgrade_silverstripe/trunk@4779 7b40dde9-fc51-43d4-b609-63a66f0a0cee
TYPO

git-svn-id: http://sunny.svnrepository.com/svn/sunny-side-up-general/upgrade_silverstripe/trunk@4780 7b40dde9-fc51-43d4-b609-63a66f0a0cee


git-svn-id: http://sunny.svnrepository.com/svn/sunny-side-up-general/upgrade_silverstripe/trunk@4781 7b40dde9-fc51-43d4-b609-63a66f0a0cee


git-svn-id: http://sunny.svnrepository.com/svn/sunny-side-up-general/upgrade_silverstripe/trunk@4782 7b40dde9-fc51-43d4-b609-63a66f0a0cee