Turned loss curves into a properties, so that they are computed on the fly from the loss curve ratios
Simplified a bit the FragilityModel
Refactored the scenario_damage calculator to make it more readable
Removed the redundant attribute .lss
Merge pull request #29 from gem/1081924

Refactored the scenario_damage calculator for readability
Merge pull request #28 from gem/1096881

Get the loss curves as a simple rescaling of the loss curve ratios
Cleaned up the no_damage_limit logic
Added a class FragilityFunctionSeq with a no_damage_limit attribute
Reduced FragilityModel to a namedtuple by moving its functionality to FragilityFunctionSeq
Cosmetic changes
Merge pull request #30 from gem/1081924

Fix the no_damage_limit logic
Merged master