15Apr09 version files changed by 27May11 upgrade:

doc/Manual.html
doc/Manual.pdf
doc/Manual.txt
doc/PDFgen.sh
src/ccell.cpp
src/chem_spatial.cpp
src/chem_spatial.h
src/geometry.cpp
src/grid.cpp
src/grid.h
src/memory.cpp
src/particle.cpp
src/particle.h
src/sim_spatial.cpp
src/universe.cpp
src/version.h