Loader improvements
Created by: iamholger
Hi, I added a loader facility that seems more amenable that having to hardcode what models exist.
The price to pay is one additional member for each class called 'shortname'. For example in eta1DME.py:
def shortname(self): return "1DME"
The nice thing is that uls now knows automatically what models it has and the model selection work through a simple dict {shortname : Class}
This allowed to also push a script bin/uls-models which conveniently lists all the builtin stuff and prints the corresponding doc strings without having to code clumsy if name == "1DME" .... logic.