[oslc-core] Core spec feature requirements matrix

[Dave]

One suggestion for making it easier to understand the OSLC Core spec,
what it requires and how OSLC domain specs extend it by adding or
tightening requirements is to provide a matrix with features on one
axis and requirement level(?) on the other. Here's my first attempt at
such a matrix:

    https://spreadsheets.google.com/pub?key=0AmuMBlP1tnN6dEZfRkR4OHJUTnpUMklDRWYzc0JfekE&hl=en&output=html

I'm not sure yet how a domain spec would use this to indicate how the
Core spec applied, or what the columns should be.

Feedback is welcome...

Thanks,
- Dave