implemented binary_grid-style statistics over last n_logging_stats verbose outputs (50 by default)

added ANSI colour to output if in a terminal (i.e. with a tty)

fixed the cmd-line parser to work in the form x=y as intended (downside: no help output, but that just said how to use the old parser which doesn't exist now)

tried to run this from surrey pc, got the following error: /usr/bin/ld: /tmp/ccca3KKm.o: relocation R_X86_64_32 against .rodata.str1.1 can not be used when making a shared object; recompile with -fPIC /tmp/ccca3KKm.o: error adding symbols: Bad value collect2: error: ld returned 1 exit status