Fix resetting deadlines. Closes BV-2.

Add in the current deadline as an option to the deadline selector, if it
doesn't exist.
Minor style fix.
Render newlines in questions. Closes BV-7.
Prepend log message in ajax. Closes BV-5.
Show log messages on answer page. Closes BV-15.
Merge pull request #3 from Biblioteksvagten/master

More fixes.