Add IDecayable interface
Change colorrange from 0-9 instead of 1-10
Update tests so that they expect exception
Fixed indentation
Add functionality to calculate and update weight based on the
probability of an edge being blocked
Add missing saves
Merge branch 'master' of https://github.com/Vandborg/SW505E14-Software
Correct database read error (sorry :()
Merge branch 'master' of https://github.com/Vandborg/SW505E14-Software into report_obstacle