[added] onlyDispatchWithUpstream option to rewriteTo
[added] onlyDispatchWithUpstream option to rewriteTo

Summary: I added this option to `_reactiveMap` in D3323.  This diff brings the same option to `rewriteTo`.

Reviewers: O2 Material Motion, O3 Material JavaScript platform reviewers, #material_motion, featherless

Reviewed By: O2 Material Motion, #material_motion, featherless

Tags: #material_motion

Differential Revision: http://codereview.cc/D3328

material-motion/material-motion-js,material-motion/material-motion-js,material-motion/material-motion-js