mysql-test/r/gis-rtree.result:
  test result fixed
mysql-test/r/gis.result:
  test result fixed
mysql-test/t/gis-rtree.test:
  test case fixed
mysql-test/t/gis.test:
  test case added
sql/field.cc:
  error messages launched now when we try to put bad spatial
  data in the GEOMETRY field
sql/field.h:
  interface fixed
sql/item_geofunc.cc:
  bad_data sign now instead of NULL now returned from
  Item_geometry_from_text::val_str
sql/share/errmsg.txt:
  error message added
sql/spatial.cc:
  bad_geometry data instance
sql/spatial.h:
  bad_geometry_data declaration
sql/sql_base.cc:
  messages now created in store_* function