saving compiled binaries to files

document wxs_file_selector  
 
document set_font() -- use "" instead of nil to indicate NULL fontname
    does fontname work?

make thread feature able to print debug info under windows

add constants and document:
wxOPEN 	This is an open dialog.
wxSAVE 	This is a save dialog.
wxOVERWRITE_PROMPT 	For save dialog only: prompt for a confirmation if a file 
	will be overwritten.
wxHIDE_READONLY 	Do not display the checkbox to toggle display of read-only 
	files. Deprecated in 2.6; the checkbox is never shown.
wxFILE_MUST_EXIST 	The user may only select files that actually exist.
wxMULTIPLE 	For open dialog only: allows selecting multiple files.
wxCHANGE_DIR 	Change the current working directory to the directory where 
	the file(s) chosen by the user are.
	
document listdir and port to Linux and Mac


Python dictionary hash algorithm (from stackoverflow):
def lookup(d, key):
    perturb = j = hash(key)
    while True:
        cell = d.data[j % d.size]
        if cell.key is EMPTY:
            raise IndexError
        if cell.key is not DELETED and (cell.key is key or cell.key == key):
            return cell.value
        j = (5 * j) + 1 + perturb
        perturb >>= PERTURB
(PERTURB shift is 5)
resize at 2/3 full, keep track of actual elements used because deleted
slots may drive copies to a new "clean" table, possibly even the same
size