Log Message:
bincimap: new upstream, update to 2.0.15. Changes:

2.0.15  Included logging for Operator LOGIN and display of the real auth
        user rather than the virtual user in the logs. Streamlined log
        output to be close to s/qmail's.
2.0.14  Removed gethostbyname and replaced by environment variable
        'TCPLOCALHOST'. Changed default logtype to 'multilog'.
2.0.13  Logging is working now for each session at logout/disconnect/timeout.
2.0.12  CRAM-MD5 Auth should work now (given the backend allows this).
        Modularized auth operator for potential new methods.
        Improved man pages to reflect current capabilities.
2.0.11  BincInfo renamed to BincLog, added s/qmail like tags for logging.
        Added a LICENSE file (under ./doc).
        StartTLS working now after reordering reply command sequence.
2.0.10  Added CRAM-MD5 authentication. 'logged in' log includes now remote IP.
2.0.9   Added doc + man pages and finished slashpackage installation.
2.0.8   Final cleaning and integration tests.
2.0.7   Moved StartTLS support into operator-starttls.cc.
2.0.6   Added StartTLS into sesssion-initialisation-bincimap-up.cc.
2.0.5   Added operator-id.cc (RFC 2971) since Evolution requires this.
2.0.4   Removed JAIL option -> sslserver can do that as well. Trimmed log
        output.
2.0.3   Trimming of *.cc and *.h files. Removed StartTLS driver.
2.0.2   Integration tests successful for TLS and with new qmail-authuser.
2.0.1   Makefile working. First minor fixes. Initial working version.
2.0.0   Initial restart of Bincimap 1.3.4 without Autoconf tools.