Fix a bug which caused dates to be wrong if they were the same month
Switch from QThread to multiprocessing.Process because QThread was crashing. Add a AflafrettirSignal class to notify the GUI when the process has finished running.
Fix UnicodeEncodeError
Update test_landings to remove hardcoded password
Fix bug, so that multiple harbours and gears are printed out correctly
Fix bug, so landingHarbour and equipment always contain unique elements. Also a bug, so that landings are grouped correctly
Divide the catch by 1000 to calculate the catch in tonnes, except when the species are Capelin, Herring or Blue Whiting, which are already given in tonnes
Big changes. Move away from processes to threads. Add an act() function

which is called everytime a timer runs out. Add a start_thread() function
that starts the threads and creates a LandingManager. Add a
set_landing_info() function for initializing certain things before a
thread can be started. Few smaller changes.
Update the GUI
Custom name given to the excel output