Robson Braga Araujo fixed a memory leak when you added an easy handle to a

multi stack and that easy handle had already been used to do one or more
easy interface transfers, as then the code threw away the previously used
DNS cache without properly freeing it.

RELEASE-NOTES

@@ -20,6 +20,7 @@ This release includes the following changes:
 
 This release includes the following bugfixes:
 
+ o possible memory leak when adding easy handles to multi stack
  o TFTP works in a more portable fashion (== on more platforms)
  o WSAGetLastError() is now used (better) on Windows
  o GnuTLS non-block case that could cause data trashing