Added php7 to travis

.travis.yml

@@ -6,8 +6,14 @@ php:
   - 5.4
   - 5.5
   - 5.6
+  - 7.0
   - hhvm
 
+matrix:
+    fast_finish: true
+    allow_failures:
+        - php: 7.0
+
 before_script:
     - sudo apt-get install parallel
     - rm -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini