Latest commit a94a813 May 24, 2017 @goneri goneri introduce Board.get_last_activity()
There is no `dateLastActivity` key anymore in the board JSON. The
official documentation does not speak about the field neither. This
commit introduce the `get_last_activity()` to retrieve the board last
activity. It returns a regular datetime instance.

It also maintains the `Board.date_last_activity` attribute to preserve
the compatibilty with the old code base.

Failed to load latest commit information. tests: replace use of deprecated assertEquals with assertEqual Jun 3, 2016