Upgraded to 3.1

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@4624 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/ecommerce_tax/trunk@4656 950b781c-c544-efab-2f99-90083ee69683
3.1 Upgrade

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@4676 950b781c-c544-efab-2f99-90083ee69683
ENHANCEMENT: adding install folder

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_tax/trunk@4723 950b781c-c544-efab-2f99-90083ee69683