Added "IPYTHON_MODE" variable to consts which signals if we're running in IPython or not.
Fixed docstring support. For now, we have to use the somewhat-common "getdoc()" since that seems clean enough, at least for IPython. I'll keep looking for a universal solution.
Made "getdoc" get handled auto-magically so autocompletion wouldn't fill it in when a human user is playing with the API.