Update Travis configuration for SS4 builds and PHP 7

.travis.yml

@@ -1,33 +1,21 @@
-# See https://github.com/silverstripe-labs/silverstripe-travis-support for setup details
+# See https://github.com/silverstripe/silverstripe-travis-support for setup details
 
 sudo: false
 
 language: php
 
 php:
-  - 5.3
-  - 5.4
   - 5.5
   - 5.6
+  - 7.0
 
 env:
-  - DB=MYSQL CORE_RELEASE=3.2
-
-matrix:
-  include:
-    - php: 5.6
-      env: DB=MYSQL CORE_RELEASE=3
-    - php: 5.6
-      env: DB=PGSQL CORE_RELEASE=3.1
-    - php: 5.6
-      env: DB=PGSQL CORE_RELEASE=3.3
-    - php: 5.6
-      env: DB=PGSQL CORE_RELEASE=3.4
-  fast_finish: true
+  - DB=MYSQL CORE_RELEASE=4
+  - DB=PGSQL CORE_RELEASE=4
 
 before_script:
   - composer self-update || true
-  - git clone git://github.com/silverstripe-labs/silverstripe-travis-support.git ~/travis-support
+  - git clone git://github.com/silverstripe/silverstripe-travis-support.git ~/travis-support
   - php ~/travis-support/travis_setup.php --source `pwd` --target ~/builds/ss
   - cd ~/builds/ss
   - composer install