fix

composer.json

@@ -16,7 +16,7 @@
     "distribute-helper": {
         "use-space": "20.0 MB",
 		"module-name":"tools",
-        "common-files":[
+        "module-files":[
             {"name":"sumatrapdf-0.1-c94f9d.7z","size":"9.28 MB"}
         ]
     }