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.

... when the handshake succeeds

This fixes a connection failure when FTPS handle is reused.

... and bumped the planned release version.

This fixes a copy-paste mistake from commit 2968f957.

... and bumped the contributor amount after recount

And renamed all http2 references to HTTP/2 in this file