problem with xforms schema and testcase 5.2.1.c

[Aaron Reed]

Hi,

Looks like the xforms schema is missing a definition for
xforms:nonPositiveInteger which causes failures in 5.2.1.b and 5.2.1.c.
  Testcase for 5.2.1.c also has a bug in it.  It has "<xforms:bind
nodeset="my_byte" type="xforms::byte" />".  Note the double colon
instead of a single colon in the type attribute value.

--Aaron