add numpy to installer and fix box64 to acknowldge more syscall

big merge with dae

add option -A <opt> to box. This options allow more argument to be explicitly passed to the program We have to use this because if the argument we wish to pass to the program is option (in -? format), box will intepret it as its option and failed accordingly. be noted that, by the definition of getopt, these options will be put after original argument (check the code for more info)

add a new modified sandbox "box" The original file was pulled from moe (git://git.ucw.cz/moe.git) by Martin Mares's commit on Sun Jul 29 23:53:56 2012 +0200 The modification is to make it separately compilable and add more option to specify additional argument to the program. (Please see usage guide) run `gcc -o box -std=c99 box64-new.c` to compile.

change memory resolution in report to kbytes

add run_stat checking

fix bux when pid=0

add new box, from moe, and modified to report running time in grader format