ADDING .travis.yml file

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_paymentexpress/trunk@4914 950b781c-c544-efab-2f99-90083ee69683
TRAVIS FIX

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_paymentexpress/trunk@4915 950b781c-c544-efab-2f99-90083ee69683
UPDATING .travis.yml file

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/payment_paymentexpress/trunk@4916 950b781c-c544-efab-2f99-90083ee69683