Added (almost) full test suite for KIF test steps.

Excluded are popovers since this targets the iPhone and photo selection
since it is highly domain specific.
Continuation of previous commit.  Some files didn't go through completely.
Future iOS SDK compatibility.

Makes app work with SDK's that do not contain UITouch->_gestureView.
Work around defect in current betas where accessibilityValue may return
an NSAttributedString.
Address issues where an application's keyWindow may not be a member of
the windows array.
Increase the timeout between scrolling to a cell and looking it up.

Note that the latest simulator release has issues with accessibility
and the tests will need to be run on device or with an earlier
simulator.