I searched and replaced all molecular_weight and replaced them with molecular_mass
updating comments
updating comments and adding back liscense.txt
added base tape9 and cache.load() optimization which makes the cli run in a minute, rather than an hour.
alost there
first-cut origen transmuter
Origen runs, but segfaults
added more sensible default values
origen fails with read error
Initial add of ssw_combine.py example
origen transmuter works...but not with base_tape9.inp
lost roundtripability of writing in favor of robustness
Minor style fixes.
Merge branch 'staging' into o2t
updated chainsolve
fixed docstrings
updated copywrite
added two new projects and fixed a few small syntax things in exp_data.
Fixed errors in alara module function.
fixed more incorrect usages of name molecular weight