Update lib json to v1.1.1

Author: miklik72

library.json

@@ -11,7 +11,7 @@
 		"email": "dev@miklik.cz",
 		"maintainer": true
 	},
-	"version": "1.1.0",
+	"version": "1.1.1",
 	"frameworks": "arduino",
 	"platforms": "*"
 }