ContinuumIO/bokeh — pull request #1069 by paddymul (2014-08-26 12:19:25+00:00)
Title:  rects now have an x_offset and y_offset parameter

the offsets move the plotted glyph a number of pixels in the desired direction.

This is useful for building a grouped column plot. Otherwise columns for the same x-axis plot on top of each other .