is_admin? Meterpreter Mixin call for win32 and win64 versions of Meterpreter

git-svn-id: file:///home/svn/framework3/trunk@10452 4d416f70-5f16-0410-b530-b9f4589650da

lib/msf/scripts/meterpreter/common.rb

@@ -78,6 +78,10 @@ def eventlog_clear(evt = "")
 	return evntlog
 end
 
+#Returns true if user is admin and false if not.
+def is_admin?
+	return client.railgun.shell32.IsUserAnAdmin()["return"]
+end
 
 end
 end