Updated documentation for ACL2-Doc.  (This goes with acl2-devel
change: Improved the ACL2-Doc implementation, in particular to support
automatic downloading of the combined manual in "rendered" format.)



git-svn-id: http://acl2-books.googlecode.com/svn/trunk@2234 303c5b2c-9740-0410-b014-fd8f9db7be32