HTML finder should work on more types of files

the http server should work with more types of files and support the right types

should support 'big' files, preferably without need of a buffer, since CGI pages aren't gonna be from a file

change files to file.html.c, so that you can tell it that you specifically want .html, and then this will magically add support for things like CGI graphics as well

for cgi, possibly allow the coder to make a function that lets you specify
type, in case they wanted to do the wrong extension for some reason