[osis-core] schema 1.1_003 bug

[Harry Plantinga]

The 1.1_003 schema has an issue which prevents XMetaL from 
accepting it--a repeated attribute.  In the definition

<xs:attribute name="osisWork" type="osisWorkType" use="required"/> 
  <xs:attributeGroup ref="globalAttributes"/> 
  <xs:attribute name="TEIform" fixed="text"/>

the attribute "osisWork" is duplicated because it is also
included in the globalAttributes attribute group.  (It's not
required there, so it may be necessary to list all of the
attributes other than osisWork in the globalAttributes 
group separately.)

-Harry