Merge pull request #34 from eugene-matvejev/exlude_php705

RC5 - exclude PHP 7.0.5 as it had bugged SPL

Author: Eugene Matvejev

composer.json

@@ -21,7 +21,7 @@
         }
     },
     "require": {
-        "php": ">= 5.5.9",
+        "php": ">= 5.5.9 || 7.0.0 - 7.0.4 || >= 7.0.6",
         "leafo/lessphp": "^0.5",
         "leafo/scssphp": "@dev",
         "leafo/scssphp-compass": "@dev"