Moved showViewer and updateViewer out of the bridge plugin
Don't pass ID to host frame. Use 16329tag for everything. Fixes #689.
Don't keep calling setActiveHighlights like crazy, on every flicker of the mouse pointer. (Bind to mouseover, instead of mousemove.)
Import @edsu's fix for the jsChannel vs Prototype problem

Updated jsChannel to this version:
https://github.com/edsu/jschannel/tree/e9caa88ac9390385b57d263528f0869ae6a48ac9

Fixes #608.