Merge pull request #4 from php-middleware/php7-support

PHP7 support

Author: snapshotpl

.travis.yml

@@ -8,7 +8,6 @@ matrix:
     - php: 7
     - php: hhvm
   allow_failures:
-    - php: 7
     - php: hhvm
 
 install:

composer.json

@@ -9,7 +9,7 @@
         "psr-7"
     ],
     "require": {
-        "php": ">=5.5",
+        "php": "^5.5 || ^7.0",
         "maximebf/debugbar": "^1.10",
         "psr/http-message": "^1.0",
         "zendframework/zend-diactoros": "^1.1.3"