JAVA-1070: Restricted NULL Unicode character checks to cstring, so that a normal value string can contain one
Added support for running tests with GSSAPI authentication enabled
Introduced a new test for GSSAPI authentication.  It's ignored unless the test was started with the GSSAPI mechanism.
Tweaking build for GSSAPI testing on Jenkins
Adding some debugging output for GSSAPI testing on Jenkins
Removed some debugging output for GSSAPI testing on Jenkins