Fixed bug in GROUP BY on ELT()
Added SEQUENCE() to UDF examples


BUILD/FINISH.sh:
  Avoid error message if tmp exists
Docs/manual.texi:
  Cleaned up bug reporting section
mysys/my_init.c:
  Workaround for bug in thread library in Unixware 7
readline/input.c:
  Portability fix
scripts/mysql_install_db.sh:
  Made host, user and db field binary
sql/item_func.h:
  Fixed bug in GROUP BY on ELT()
sql/item_strfunc.cc:
  Fixed bug in GROUP BY on ELT()
sql/share/Makefile.am:
  Don't automaticly checkout SCCS files
sql/sql_select.cc:
  Cleanups
sql/udf_example.cc:
  Added SEQUENCE() to UDF examples.