... even if the last IPv6 connection attempt has failed.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1187531#c4

Added some bug fixes that I had missed in previous synchronisations.

As it is often difficult to choose the best description for a single
feature when it spans many commits, updated the descriptions for the
recent SMB/CIFS protocol and GSS-API additions.

Additionally, updated "GSSAPI" to "GSS-API" for a Cmake related change
as GSSAPI can be confused with the authentication mechanism rather than
a GSS-API implementation library such as MIT or Heimdal.

Added support for WinIDN build configurations to the VC6 project files.

Added support for WinIDN build configurations to the VC7 and VC7.1
project files.