[provision] SPML Core version 07...

Attached if the latest rev of the SPML core schema.
 
This version has the following mods:
1) Added "core" to the namespace (thanks to Paul Madsen for pointing out that was missing)
2) Added a results attribute to the SPML Response element type.
3) Added a containing element for operation attributes to be consisten with how the rest of the attributes work.
4) Made more consitent use of min occurs and max occurs declarations for elements.
 
Jeff Bohren
OpenNetwork Technologies