Add illuminate/cache dependency

Fixes #69

Author: mikebronner

composer.json

@@ -24,6 +24,7 @@
     ],
     "require": {
         "php": ">=5.4",
+        "illuminate/cache": "~5.0",
         "illuminate/support": "~5.0",
         "willdurand/geocoder": "~3.3"
     },