Fix for Solaris and gethostbyname_r


Docs/manual.texi:
  Changelog
client/mysql.cc:
  Cleanup
configure.in:
  Fix for Solaris and gethostbyname_r
sql/log_event.h:
  Fix for load data infile when no active database
sql/sql_load.cc:
  Fix for load data infile when no active database