Preliminary improvements to dev_guide (#754)
flesh out docs a bit more
start prod vs dev discussion, move up towards the top in Installation section
add section on evnironment variables
add sections on CSS and browser caching
comment initial space
split user guide into separate docs
better docstring for Include
tighten up report_issue verbiage
use google docstring, correct owner description
update docstrings again, add bokeh module funcs to reference
some server docs, just command line options for now
stub out more UG sections
Update charts docs.
Merge branch 'task/user_guide' of github.com:ContinuumIO/bokeh into task/user_guide
update userguide for objects
Merge branch 'task/user_guide' of github.com:ContinuumIO/bokeh into task/user_guide
Fix closing parenthesis.
improve embedding docs
Merge branch 'task/user_guide' of github.com:ContinuumIO/bokeh into task/user_guide