Add travis support

.travis.yml

@@ -0,0 +1,17 @@
+language: php
+
+php:
+  - 5.3
+
+env:
+  - DB=MYSQL CORE_RELEASE=3.1
+  - DB=MYSQL CORE_RELEASE=master
+
+before_script:
+  - phpenv rehash
+  - git clone git://github.com/silverstripe-labs/silverstripe-travis-support.git ~/travis-support
+  - php ~/travis-support/travis_setup.php --source `pwd` --target ~/builds/ss
+  - cd ~/builds/ss
+
+script:
+  - phpunit gridfieldextensions/tests/