Mostly fixes for the Windows compilers this time:
o configure check for libmysqlclient now halts configuration if the
library isn't found. Previously, it would just be flagged as
missing, and MySQL++ would fail to build.
o Added sql_string.cpp to VC++ and BCBuilder project files.
o Removed Totte Karlsson's 'populate' example, which never made it
into the distribution anyway.
o Removed last vestiges of 'dummy.cpp'.
o Renamed *.cc to *.cpp in BCBuilder project files.
o Worked around a BCBuilder C++ syntax processing bug in row.h.
As always, it is available at http://tangentsoft.net/mysql++/