minor fix



git-svn-id: http://coturn.googlecode.com/svn/trunk@536 a3c88463-c8e2-e606-d8d5-275b8e57aef6
minor fixes



git-svn-id: http://coturn.googlecode.com/svn/trunk@537 a3c88463-c8e2-e606-d8d5-275b8e57aef6