remove deprecated symmetry option
port twisted's deprecation library
let gridplots with hover tools function at all
Add slick-grid 2.1.0
Convert SlickGrid to an AMD module
Add SlickGrid and jquery.event to dependencies
Add stub for SlickGrid widget
Merge remote-tracking branch 'origin/master' into mattpap/grid
basic fixes for crossfilter rendering
merge master
figure returns plot, most tests and examples pass
removing width/height which are undefined anyways because @dpi_ratio is not set
changing crossfilter plot container class from bk-plot to bk-crossfilter-plot
Merge remote-tracking branch 'origin/master' into fix_crossfilter
border_symmetry no longer used
removing gevent
Remove dysfunctional ObjectExplorer tool and widget
Remove jstree since it's not needed anymore
More systematic approach to tool validation

This employs similar technique to what HasProps.__setattr__() uses.
Merge pull request #1371 from bokeh/mattpap/remove_object_explorer

Remove ObjectExplorer