libcrypt - Internalize additional symbols

libcrypt - Internalize additional symbols

* Internalize additional symbols which conflict with libssl or libressl.
  This works around the apache https issue we had by avoiding a buggy
  error path that will be fixed upstream.  This also fixes a bogus fetch
  failures we were having while testing https.

* Make the *_Init() API for MD5, SHA*, etc in libmd compatible with libssl
  and libressl.

* Note that libmd is inheritently incompatible with lib[re]ssl, so look
  for an upcoming fix for that (maybe we can remove it entirely).