Update composer.json

Support Laravel 4.1

Author: miladr

composer.json

@@ -11,7 +11,7 @@
     "keywords": ["Laravel","Date","Datetime","Jalali"],
     "require": {
         "php": ">=5.3.0",
-        "illuminate/support": "4.0.x"
+        "illuminate/support": "4.x.x"
     },
     "autoload": {
         "psr-0": {