[PATCH v2] secur32: implement the SECPKG_ATTR_UNIQUE_BINDINGS context attribute

[Damjan Jovanovic]

.NET's System.Data.SqlClient needs this to connect to MSSQL Server.
A MacOSX implementation doesn't appear to be possible.

Try 2 doesn't free the GNUTLS datum when its allocation failed.

Signed-off-by: Damjan Jovanovic 
---
 dlls/secur32/schannel.c        |  7 ++++++
 dlls/secur32/schannel_gnutls.c | 39 ++++++++++++++++++++++++++++++++++
 dlls/secur32/schannel_macosx.c |  6 ++++++
 dlls/secur32/secur32_priv.h    |  2 ++
 dlls/secur32/tests/schannel.c  | 26 +++++++++++++++++++++++
 5 files changed, 80 insertions(+)