[ipad] beVerticalScroll and beHorizontalScroll allows Morphs to be scrolled with just one finger (a clipMode scroll will allow scrolling with two fingers)
setFixedInPosition is now based on CSS "position: fixed;"
keeping the controls in front
correct computation of bounds for fixed morphs
setting fixed was changing the position of a morph on screen
setting unfixed was changing the position
Setting a morph fixed would cause removal of fixed morph
adapting zoom scale for position fixing
realigning halos when setting fixed
wrote tests for CSS based setFixed
the active window will still be kept in front
some cleanup
remove obsolete method call
css: use normal dom accessors instead of jQuery
css: making css class reads more efficient and starting to use move more of the lively rendering internals into base stylesheet