Merge zippy.cornsilk.net:/home/cmiller/work/mysql/bug15776/my50-bug15776

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-build


mysql-test/t/type_blob.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/unireg.h:
  Auto merged