Ability to link to particular CloudCoder pages or views #56
Description
Currently there's no way to link to anything inside CloudCoder. People have to log in, then navigate to find a particular page (i.e. to find a particular exercise).
It looks like we should use the GWT History mechanism for this (which we already do to some extent with the back-arrow that shows up on most CloudCoder pages):
https://developers.google.com/web-toolkit/doc/latest/DevGuideCodingBasicsHistory