Adds @EndangeredMassa as a package maintainer.

Thanks Sean!

Author: baalexander

package.json

@@ -4,7 +4,10 @@
 , "version" : "0.1.3"
 , "preferGlobal" : false
 , "homepage" : "https://github.com/baalexander/node-portscanner"
-, "author" : "Brandon Alexander <baalexander@gmail.com> (https://github.com/baalexander)"
+, "author" : [
+    "Brandon Alexander <baalexander@gmail.com> (https://github.com/baalexander)"
+  , "Sean Massa <endangeredmassa@gmail.com> (http://massalabs.com)"
+  ]
 , "repository" :
   { "type" : "git"
   , "url" : "git://github.com/baalexander/node-portscanner.git"