patch applied (ghc): Merge from Haddock: Add <<url>> for images

[David Waern]

Mon Nov 12 14:05:37 PST 2007  David Waern <david.waern at gmail.com>
  * Merge from Haddock: Add <<url>> for images
  A merge of this patch:
  
    Mon Aug  7 16:22:14 CEST 2006  Simon Marlow <simonmar at microsoft.com>
      * Add <<url>> for images
      Submitted by: Lennart Augustsson
  
  Please merge to the 6.8.2 branch.

    M ./compiler/hsSyn/HsDoc.hs +1
    M ./compiler/parser/HaddockLex.hs-boot +1
    M ./compiler/parser/HaddockLex.x +2
    M ./compiler/parser/HaddockParse.y +2
    M ./compiler/rename/RnHsDoc.hs +2