- Fix the MIT / Heimdal check for good:

Define HAVE_GSSMIT if <gssapi/{gssapi.h,gssapi_generic.h,gssapi_krb5.h}> are
  available, otherwise define HAVE_GSSHEIMDAL if <gssapi.h> is available.

  Only define GSS_C_NT_HOSTBASED_SERVICE to gss_nt_service_name if
  GSS_C_NT_HOSTBASED_SERVICE isn't declared by the gssapi headers. This should
  avoid breakage in case we wrongly recognize Heimdal as MIT again.

RELEASE-NOTES

@@ -18,6 +18,7 @@ This release includes the following bugfixes:
  o CURLOPT_NOBODY first set to TRUE and then FALSE for HTTP no longer causes
    the confusion that could lead to a hung transfer
  o curl_easy_reset() resets the max redirect limit properly
+ o configure now correctly recognizes Heimdal and MIT gssapi libraries
 
 This release includes the following known bugs:
 
@@ -34,6 +35,7 @@ New curl mirrors:
 This release would not have looked like this without help, code, reports and
 advice from friends like these:
 
- Michal Marek, Daniel Fandrich, Scott Barrett, Alexey Simak
+ Michal Marek, Daniel Fandrich, Scott Barrett, Alexey Simak, Daniel Black,
+ Rafa Muyo
 
         Thanks! (and sorry if I forgot to mention someone)