Update Rollbar version to ~1.1.0

Author: matjack1

composer.json

@@ -21,6 +21,6 @@
     ],
     "require": {
         "php": ">=5.3",
-        "rollbar/rollbar": "~1.0.0"
+        "rollbar/rollbar": "~1.1.0"
     }
 }