Adherence to official spelling: jQuery

Thanks for the patch-- you don't know how many times i read over that code to make sure all the instances of "jQuery" matched, lol. I made the first change, but left the 2nd one intact as is was a specific reference to the directory (which is all lower case) rather than the word.

Thanks again.

Committed to both d5 and d6 dev snapshots on 10/11/08.