Demonstrate effect of position in query of 'Select' clause for 'Get'

I found some inconsistent behaviour with Select clauses on 'Get' queries, so I wrote a couple of tests that demonstrate it.  I know you're working on v2 (did you get your X-Box?) so I'm not sure if this is of any interest to you.  

If you do merge the changes in, I'll reference these tests when I make a pull request on http://simplefx.org/simpledata/docs/ updating the detail on 'Select' with regards to 'Get's.

Cheers,
Steve