merged in latest bokehjs master
 bokehjs now seems to work properly after the merge
hooked up namespace viewer to rendering tables
some table stylings
merged master in
 a hacky way of getting pngs to render instead of canvas
need to return false after groupby to prevent form submission
 now there is a PNGListView that uses PNGViews instead of PlotViews
 now PNGListView creates Pngs if they don't first exist
 PNG plot titles are only shown when they exist, PNGs thumbnails sizes are parameterized with thumb_x and thumb_y
computed columns
searching dataframes
Merge commit 'd7067a0a730cde7da27db69daa0c005ff9225a09'

Conflicts:
	subtree/Bokeh/bokeh/objects.py
	subtree/Bokeh/bokeh/pandasobjects.py
	subtree/Bokeh/subtree/bokehjs/static/coffee/common/plot.coffee
handling build_views for empty lists
incorporated plotlist
showing selection color only in one column
table improvements
crude datetime support
search box is now larger
auto adding titles to plots adjusting inner bokeh table class to bokehdatatable