Fixed couchapp auth in IE and compatibility with newer jQuery#1

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secobarbital wants to merge 2 commits intocouchapp:masterfrom secobarbital:master

+38

Commits on Aug 30, 2011

Disable jQuery ajax caching which conflicts with couch auth in IE
secobarbital
committed
Add jQuery httpData function if it is not available, which is the case
secobarbital
committed