add m prefix to base and offset label members
interpreter.cpp,h
dual license
wrap interpret in a Context class
add RETURN_VOID case
js2.cpp
update to use context class
remove #if 0 code that'll probably never be used anyway.
jstypes.h
add defineProperty/function to JSObject
vmtypes.h
regerated opcode classes:
added RETURN_VOID, removed LOAD/SAVE_VAR
reverted bacl to the smaller print function (thanks to RETURN_VOID)
fixed branch printing issue
inherit print() from super if possible
tools/gencode.pl
generate smaller print functions again
don't generate print function if superclass can take care of it.
