Backport NE and NC RewriteRule flag docs which were somehow missed.

         <strong>But be careful not to create an infinite

        loop!</strong></li>

        <li>'<strong><code>nocase|NC</code></strong>'

        (<strong>n</strong>o <strong>c</strong>ase)<br />

         This makes the <em>Pattern</em> case-insensitive,

        <em>i.e.</em>, there is no difference between 'A-Z' and

        'a-z' when <em>Pattern</em> is matched against the current

        URL.</li>

        <li>

          '<strong><code>noescape|NE</code></strong>'

          (<strong>n</strong>o URI <strong>e</strong>scaping of

          output)<br />

           This flag keeps mod_rewrite from applying the usual URI

          escaping rules to the result of a rewrite. Ordinarily,

          special characters (such as '%', '$', ';', and so on)

          will be escaped into their hexcode equivalents ('%25',

          '%24', and '%3B', respectively); this flag prevents this

          from being done. This allows percent symbols to appear in

          the output, as in 

<example>

    RewriteRule /foo/(.*) /bar?arg=P1\%3d$1 [R,NE]

</example>

          which would turn '<code>/foo/zed</code>' into a safe

          request for '<code>/bar?arg=P1=zed</code>'. 

        </li>

        <li>

          '<strong><code>nosubreq|NS</code></strong>' (used only if

          <strong>n</strong>o internal