Added 7 with allow failures. Database is not needed in this env.

.travis.yml

@@ -6,15 +6,14 @@ before_script:
 - cd ~/builds/ss
 language: php
 php:
-  - 5.3
-  - 5.4
-  - 5.5
-  - 5.6
+  [5.3,5.4,5.5,5.6,7.0]
+
+matrix:
+  allow_failures:
+    - php: 7.0
 
 script:
 - vendor/bin/phpunit ideannotator/tests/
 env:
-  matrix:
-  - DB=MYSQL CORE_RELEASE=3.1
   global:
     secure: HJ7sHJww/NX3PPVGjy0ggZyZSLoAdGB4BZJ0UEnIDNhR1fZ1aF4pAEA1K5cvksV9FGCbQ9Z/2JfRk8csDgWIybkBuckZsj+7yjd8u6AEPLKve+GA/Z3iN21jrDZiCC/gugAWJl7OdmR+64bFBjHbvZzYUusjSjpSRO5EqqWPgWA=