create ecell3-ipython
fix: configure ecell3-ipython
typo
Debug SbmlFunctions.py
SbmlFunctions.py: get_common_denominator

fix bug from using Decimal.from_float()
Revert "* Fix long-standing Stepper bug that causes solvers to yield incorrect values "

This reverts commit 912f19879f6e0aadaba8e97d28e1c01a47248638.

Conflicts:
	ecell/dm/DAEStepper.cpp
	ecell/dm/ESSYNSStepper.cpp
	ecell/dm/FixedODE1Stepper.cpp
	ecell/dm/FluxDistributionStepper.cpp
	ecell/dm/ODE45Stepper.cpp
	ecell/dm/ODEStepper.cpp
	ecell/libecs/DifferentialStepper.cpp
	ecell/libecs/DifferentialStepper.hpp
	ecell/libecs/DiscreteEventStepper.cpp
	ecell/libecs/Model.cpp
	ecell/libecs/PassiveStepper.cpp
	ecell/libecs/PassiveStepper.hpp
	ecell/libecs/Stepper.cpp
	ecell/libecs/Stepper.hpp
	ecell/libecs/StepperEvent.hpp
	ecell/libecs/SystemStepper.cpp
	ecell/libecs/SystemStepper.hpp
	ecell/libemc/LocalSimulatorImplementation.cpp
	ecell/libemc/LocalSimulatorImplementation.hpp
	ecell/pyecell/ecell/_ecs.cpp