Add mime type for .js. See

http://help.netscape.com/kb/client/970303-2.html for details on
.js files.

PR: 2635
Obtained from:
Submitted by:	Hinnerk Gnutzmann <h.gnutzmann@gmx.net>
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81777 13f79535-47bb-0310-9956-ffa450edef68