v0.32 - mnemo renaming added

starting with this release, each mnemonic output by the selected disassembler can be renamed by putting a
mnemo org new
instruction into the info file, like, for example,
mnemo fcb .byte
if the assembler of your choice needs .byte as the mnemonic to put an arbitrary byte at the current positon.
If you put a bunch of these into an info file and then include that in your disassembly info files, you can pretty much redefine the complete disassembler output.
Additionally, the begin and end options didn't work too well; corrected.