use docker and IPython notebook
Update installation.rst
Update installation.rst
debugged StepEvent
Merge remote-tracking branch 'origin/master' into lattice
adjusted to NetworkModel's API
added diffusion sample
improved a performance of moving particles
removed SParticle.hpp
debugged test errors without tuning
Merge remote-tracking branch 'origin/lattice' into lattice
modified LatticeSimulator::walk()
Merge remote-tracking branch 'origin/lattice' into interface

Conflicts:
	core/LatticeSpace.cpp
	core/LatticeSpace.hpp
	core/MolecularTypeBase.hpp
	core/tests/LatticeSpace_test.cpp
	core/wscript
	lattice/LatticeSimulator.cpp
	lattice/LatticeWorld.cpp
	lattice/LatticeWorld.hpp
	lattice/tests/LatticeSimulator_test.cpp