Get Cosmopolitan into releasable state

A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html

libc/log/checkaligned.c

@@ -31,5 +31,5 @@ void __check_fail_aligned(unsigned bytes, uint64_t ptr) {
   if (!IsTiny()) memsummary(fileno(stderr));
   (dprintf)(fileno(stderr), "%s%d%s%#p\r\n", "error: pointer not ", bytes,
             "-byte aligned: ", ptr);
-  die();
+  __die();
 }