On Feb 7 2008:
base64.h: Rev 2837
base64.c: Rev 2673
ramp.c: Rev 2837
ramp.h: Rev 2837

On Apr 3 2008:
base64.h:        removed
base64.c:        removed
ramp.c:          removed
ramp.cpp:        Rev 2950
ramp.h:          Rev 2952
ramp_base64.cpp: Rev 2952
ramp_base64.h:   Rev 2952

On Apr 10 2008:
ramp.cpp:        Rev 3043
ramp.h:          Rev 3046