Merge pull request #361 from antograssiot/php7

add php7 build

Author: lorenzo

.travis.yml

@@ -4,6 +4,7 @@ php:
   - 5.4
   - 5.5
   - 5.6
+  - 7.0
 
 sudo: false
 
@@ -15,12 +16,12 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: 5.4
+    - php: 7.0
       env: PHPCS=1
 
 install:
   - composer self-update
-  - composer install --dev
+  - composer install --prefer-dist
 
 before_script:
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'CREATE DATABASE cakephp_test;'; fi"