move inline testing from import time to runtime
move inline testing from import time to runtime

d-fan/pysb,johnbachman/pysb,LoLab-VU/pysb,spgarbet/pysb,neurord/pysb,neurord/pysb,neurord/pysb,spgarbet/pysb,spgarbet/pysb,jmuhlich/pysb,alubbock/pysb,d-fan/pysb,d-fan/pysb,LoLab-VU/pysb,johnbachman/pysb,pysb/pysb