Removes problematic touch browser optimization which prevented TextFieldViews from becoming first responder if their input field was not already focused. This was to avoid running relatively expensive makeFirstResponder code uselessly (as you can't shift focus programmatically outside of a touch event) on slower mobile devices, but it failed to account for useful calls to focus one view (e.g. an inline editor) in the context of a touch to a different view (e.g. its parent LabelView). If this deoptimization proves noticeable, another way of confirming touch-event context should be found. Resolves #1166.