ContinuumIO/bokeh — pull request #312 by mattpap (2014-02-03 19:00:15+00:00)
Title: Automatically activate pan tool on mousedown

It's actually a little more than that. Make sure to test all combinations (button active/inactive, with/without ctrl/shift/alt, etc.) in e.g. `plotting/file/bollinger.py` (it uses most of the interesting tools).