bug#17217: 24.4.50; eww/shr and relative links

[João Távora]

Hi maintainers, Lars,

    emacs -Q
    M-x eww RET\
        
http://franz.com/support/documentation/current/doc/classes/excl/compiler-inconsistent-name-usage-warning.htm\
        RET

Click on any link in the webpage, *eww* always reports 404, because it
couldn't follow a relative link with href="../../release-notes.htm". A
browser like chromium handles these nicely, so pressing

    C-u RETq

on a link to open it in an external browser works, would navigate to

    http://franz.com/support/documentation/current/doc/release-notes.htm

And not

    
http://franz.com/support/documentation/current/doc/classes/excl/../../release-notes.htm

No idea if ../../ is standards compliant, but it would be nice to
understand it.

Thanks,
João

In GNU Emacs 24.4.50.1 (i686-pc-mingw32)
 of 2014-03-30 on LEG570
Repository revision: 116906 jan.h.d@swipnet.se-20140329120847-qr6hgyxpd0tk2yve
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --enable-checking 'CFLAGS=-O0 -g3' CPPFLAGS=-DGLYPH_DEBUG=1'

Configured features:
XPM JPEG TIFF GIF PNG RSVG NOTIFY ACL GNUTLS LIBXML2 ZLIB

Important settings:
  value of $LANG: C.UTF-8
  locale-coding-system: cp1252

Major mode: Fundamental

Minor modes in effect:
  global-edit-server-edit-mode: t
  ido-vertical-mode: t
  electric-pair-mode: t
  ido-everywhere: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t