rfe13402: Use defaults of the underlying ssl module.

Remove outdated ssl defaults in both the client and server.
Instead, rely on the defaults of the underlying ssl module,

Fix a bug where passing an :ssl-args argument, and not an :ssl arg,
when starting a server would not result in an https server being
started. A server can now be started via

  :ssl "server.pem"

or

  :ssl-args '(:certificate "server.pem")

Updates the t-aserve testsuite to use the preferred :ssl-args when
performing https testing.

<release-note>
rfe13402: Use defaults of the underlying ssl module.

Remove the outdated :sslv23 defaults for using ssl in both the
Allegroserve client and server. Instead, rely on the defaults supplied
by the underlying ssl module.

</release-note>

<documentation>
see rfe13398
</documentation>

Change-Id: I44cbd848f1e5f9996c77400c22056b9e7f0322bc
bug22805: Have Aserve use the userinfo in request uri for basic-auth

If the request uri passed to an Allegroserve client function contains
user authentication information in the userinfo slot, use it. The
:basic-authorization keyword parameter takes precedence over the uri
userinfo field if both are specified.

Tests added to test/t-aserve

<release-note>
bug22805: Have Aserve use the userinfo in request uri for basic-auth

It is possible, though not recommended, to include user login
information in the userinfo part of a uri. For example, the following
uri includes login for the user "test" with a password of "friend":

  http://test:friend@examples.org/a/door

Previously, Allegroserve would ignore any userinfo included in the
uri, and only issue an Authorization header if the
:basic-authorization keyword were specified in the client call. Now,
if no explicit basic-authorization is passed to the client function,
Allegroserve will use the userinfo field in the request uri, if
present, to generate an authorization header for the request.

</release-note>

<documentation>
tNo doc update needed.
</documentation>

Change-Id: Iacc2b5fc04c4ec156bfded13b3b5021f53b700db