List latest exams first
[Big]: Changed the way sektions are created ...

We now ask for the sektion name, its expected lifetime and whether or
not it should be auto-renewed.

Once this initial information is given, the system can take care of
the rest. For example, the system can create a new sektion once the old
one expires
Send mail to teacher when new sektion is created
Merge branch 'master' of heroku.com:drona
Merge branch 'master' of https://github.com/abhinavc/web-application