remove cruft from Gruntfile
add make_plot and show functions in Bokeh.Plotting and rework scatter demo to use
don't use Collections function, be explicit
fix typo
add vector demo
fix up lenged to not use annotation spec
add stacked bars demo
some renames
fix bug in tools specification on make_plot
restore dense rects example
restore lorenz demo
improve logging message
restore grouped bars example
restore map label demo
restore map overlay demo
fix colormapper in image renderer
restore image demo
restore candlestick demo
restore grid plot demo
fix missing prefix