Collating various peoples patches on base64, md5 and sha1

which sanitize the uuencoding used in various places a
little bit; and getting rid of all the warnings.

What is left now is moving ap_sha1.h and ap_md5.h into
ap.h OR #including them there and modularizing the ap.h
file. Secondly it might be nice to swap the base64-ish
encoding used in apache's its own MD5 passwords to the
uu-encoded one to get rid of those routines. But that
would break compatibility betwen the 1.x series.

Let's hope this is all for now.

 Modified Files:
 	ap/Makefile.tmpl ap/ap_checkpass.c ap/ap_md5c.c ap/ap_sha1.c
 	include/ap.h include/ap_sha1.h include/httpd.h
 	main/http_protocol.c main/util.c modules/proxy/proxy_ftp.c
 	support/ab.c


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83599 13f79535-47bb-0310-9956-ffa450edef68