* Fix: morph operation now accepts `position` as extraModes parameter to set whether to use polar coordinates or cartesian coordinates for interpolation. * Fix: morph operation only uses `viz.reposition` if it's implemented in  the visualization, if not it uses viz.compute('end'); instead.
* Fix: morph operation now accepts `position` as extraModes parameter to
set whether to use polar coordinates or cartesian coordinates for
interpolation.
* Fix: morph operation only uses `viz.reposition` if it's implemented in
 the visualization, if not it uses viz.compute('end'); instead.

shelsonjava/jit,shzy2012/jit,shelsonjava/jit,pingjiang/jit,mcanthony/jit,mcanthony/jit,shzy2012/jit,shzy2012/jit,tim777z/jit,pingjiang/jit,printedheart/jit,philogb/jit,printedheart/jit,tim777z/jit,mcanthony/jit,printedheart/jit,shelsonjava/jit,tim777z/jit,philogb/jit,pingjiang/jit