Document the new 'redirect-carefully' option.

Changes with Apache 2.0.29-dev

  *) Add 'redirect-carefully' environment option to disable sending

     redirects under special circumstances.  This is helpful for 

     Microsoft's WebFolders when accessing a directory resource via

     DAV methods.  [Justin Erenkrantz]

  *) Begin to abstract out the underlying transport layer.

     The first step is to remove the socket from the conn_rec,

     the server now lives in a context that is passed to the

    <p>This disables <a

    href="mod/core.html#keepalive">KeepAlive</a> when set.</p>

    <hr />

    <h2>redirect-carefully</h2>

    <p>This forces the server to be more careful when sending a redirect

    to the client.  This is typically used when a client has a known

    problem handling redirects.  This was originally implemented as a

    result of a problem with Microsoft's WebFolders software which has

    a problem handling redirects on directory resources via DAV 

    methods.</p>

    <hr />

    <h2><a id="examples" name="examples">Examples</a></h2>

    <h3>Changing protocol behavior with misbehaving clients</h3>

    <p>This disables <a

    href="mod/core.html#keepalive">KeepAlive</a> when set.</p>

    <hr />

    <h2>redirect-carefully</h2>

    <p>This forces the server to be more careful when sending a redirect

    to the client.  This is typically used when a client has a known

    problem handling redirects.  This was originally implemented as a

    result of a problem with Microsoft's WebFolders software which has

    a problem handling redirects on directory resources via DAV 

    methods.</p>

    <hr />

    <h2><a id="examples" name="examples">Examples</a></h2>

    <h3>Changing protocol behavior with misbehaving clients</h3>