Edited the course outline.

Changed the timetable according to my Email form June 4.

Added IPython introductory session.

Removed admonitions.

Added participant survey link.

Added more details for the wradlib part.

Outlined the BALTRAD-wraldib interaction.

Some other minor edits.
Added VM setup to the intro part.
Minor edit.
Merge pull request #5 from heistermann/master

Updated the course outline document.