updates to author comments in powershell script

Author: benpturner

data/exploits/powershell/powerfun.ps1

@@ -1,3 +1,5 @@
+# Powerfun - Written by Ben Turner & Dave Hardy
+
 function Get-Webclient 
 {
     $wc = New-Object -TypeName Net.WebClient
@@ -54,4 +56,4 @@ function powerfun
     $client.Close()
     $listener.Stop()
     }
-}
+}