Loadbars

This release adds stats for rudimentary memory and swap usage (the --showmem option or m hotkey), removes the --width and --inter options, adds a --barwidth option (each bar is barwidth pixels now), adds a --maxwidth option (which represents the maximum total window width), automatically disables the text display if the text does not fit the window (maxwidth) pixels, automatically re-enables the text display if the text does fit the window again, makes the "right" key increase the window width by 100px and "left" decrease it 100px, makes "down" increase the window height by 100px and "up" decrease it by 100px, resets the "samples" default values from 1,000 down to 500, and applies bugfixes.