creating 1.0 branch

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_check_availability/branches/1.0@3249 950b781c-c544-efab-2f99-90083ee69683
creating 1.0 branch

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_check_availability/branches/1.0@3270 950b781c-c544-efab-2f99-90083ee69683