Creating 2.4 branch

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_buckaroo/branches/2.4@4449 950b781c-c544-efab-2f99-90083ee69683
Creating 2.4 branch

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_buckaroo/branches/2.4@4453 950b781c-c544-efab-2f99-90083ee69683
Creating 2.4 branch

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_buckaroo/branches/2.4@4459 950b781c-c544-efab-2f99-90083ee69683
Updating composer.json files to correct reference to e-commerce

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_buckaroo/branches/2.4@4656 950b781c-c544-efab-2f99-90083ee69683
Adding and updating README files

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_buckaroo/branches/2.4@4694 950b781c-c544-efab-2f99-90083ee69683