Fix bug #1725 (Haddock links between packages) Resolving this bug is a bit tricky, it boils down to the question: Should the Haddock links between packages include the package version or not?
Fix bug #1725 (Haddock links between packages)
Resolving this bug is a bit tricky, it boils down to the question: Should the
Haddock links between packages include the package version or not?

Pro: We can differentiate between various versions of the same package,
installed all at once. (How often does this really happen in practice?)

Cons: When package A refers to a package B, and B is later upgraded, links
in A's documentation will break. Furthermore, if an *additional* version of
B is installed, which version should A refer to?

Because IMHO it is not clear what to do when version numbers are included,
let's leave them out. If somebody has a better idea, feel free to submit a
better patch.

MERGE TO STABLE

ml9951/ghc,siddhanathan/ghc,anton-dessiatov/ghc,anton-dessiatov/ghc,fmthoma/ghc,nomeata/ghc,ezyang/ghc,AlexanderPankiv/ghc,nathyong/microghc-ghc,vTurbine/ghc,oldmanmike/ghc,sgillespie/ghc,ryantm/ghc,snoyberg/ghc,tjakway/ghcjvm,snoyberg/ghc,frantisekfarka/ghc-dsi,mfine/ghc,urbanslug/ghc,holzensp/ghc,bitemyapp/ghc,ilyasergey/GHC-XAppFix,ghc-android/ghc,vTurbine/ghc,mettekou/ghc,nomeata/ghc,ekmett/ghc,hferreiro/replay,mettekou/ghc,oldmanmike/ghc,sgillespie/ghc,shlevy/ghc,spacekitteh/smcghc,christiaanb/ghc,fmthoma/ghc,olsner/ghc,mcmaniac/ghc,nushio3/ghc,ilyasergey/GHC-XAppFix,mcschroeder/ghc,mfine/ghc,ilyasergey/GHC-XAppFix,TomMD/ghc,ml9951/ghc,siddhanathan/ghc,bitemyapp/ghc,TomMD/ghc,mcschroeder/ghc,jstolarek/ghc,hferreiro/replay,nkaretnikov/ghc,ml9951/ghc,urbanslug/ghc,mettekou/ghc,ml9951/ghc,wxwxwwxxx/ghc,AlexanderPankiv/ghc,gcampax/ghc,christiaanb/ghc,olsner/ghc,oldmanmike/ghc,ezyang/ghc,gcampax/ghc,elieux/ghc,tjakway/ghcjvm,ghc-android/ghc,GaloisInc/halvm-ghc,hferreiro/replay,jstolarek/ghc,tjakway/ghcjvm,gcampax/ghc,vTurbine/ghc,olsner/ghc,frantisekfarka/ghc-dsi,mcschroeder/ghc,christiaanb/ghc,vikraman/ghc,forked-upstream-packages-for-ghcjs/ghc,mfine/ghc,ezyang/ghc,tjakway/ghcjvm,urbanslug/ghc,gcampax/ghc,mcschroeder/ghc,elieux/ghc,nkaretnikov/ghc,fmthoma/ghc,tibbe/ghc,urbanslug/ghc,jstolarek/ghc,nushio3/ghc,ghc-android/ghc,nathyong/microghc-ghc,acowley/ghc,tjakway/ghcjvm,gridaphobe/ghc,green-haskell/ghc,fmthoma/ghc,shlevy/ghc,hferreiro/replay,green-haskell/ghc,elieux/ghc,olsner/ghc,oldmanmike/ghc,anton-dessiatov/ghc,vTurbine/ghc,ryantm/ghc,oldmanmike/ghc,acowley/ghc,sdiehl/ghc,gcampax/ghc,vikraman/ghc,vikraman/ghc,ml9951/ghc,shlevy/ghc,mfine/ghc,mettekou/ghc,fmthoma/ghc,anton-dessiatov/ghc,acowley/ghc,AlexanderPankiv/ghc,gridaphobe/ghc,mcschroeder/ghc,frantisekfarka/ghc-dsi,mcmaniac/ghc,acowley/ghc,GaloisInc/halvm-ghc,lukexi/ghc,forked-upstream-packages-for-ghcjs/ghc,christiaanb/ghc,wxwxwwxxx/ghc,ilyasergey/GHC-XAppFix,urbanslug/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,jstolarek/ghc,holzensp/ghc,TomMD/ghc,lukexi/ghc-7.8-arm64,bitemyapp/ghc,ekmett/ghc,green-haskell/ghc,nomeata/ghc,sdiehl/ghc,TomMD/ghc,forked-upstream-packages-for-ghcjs/ghc,tibbe/ghc,nushio3/ghc,vTurbine/ghc,ryantm/ghc,oldmanmike/ghc,nathyong/microghc-ghc,acowley/ghc,spacekitteh/smcghc,vikraman/ghc,mcschroeder/ghc,fmthoma/ghc,lukexi/ghc,wxwxwwxxx/ghc,ml9951/ghc,christiaanb/ghc,mettekou/ghc,TomMD/ghc,nushio3/ghc,GaloisInc/halvm-ghc,elieux/ghc,gridaphobe/ghc,nathyong/microghc-ghc,shlevy/ghc,sgillespie/ghc,lukexi/ghc-7.8-arm64,hferreiro/replay,frantisekfarka/ghc-dsi,lukexi/ghc,shlevy/ghc,ekmett/ghc,da-x/ghc,sgillespie/ghc,elieux/ghc,wxwxwwxxx/ghc,siddhanathan/ghc,vTurbine/ghc,da-x/ghc,holzensp/ghc,TomMD/ghc,nushio3/ghc,mfine/ghc,vikraman/ghc,christiaanb/ghc,GaloisInc/halvm-ghc,gridaphobe/ghc,sgillespie/ghc,shlevy/ghc,mcmaniac/ghc,siddhanathan/ghc,ezyang/ghc,nushio3/ghc,fmthoma/ghc,ezyang/ghc,urbanslug/ghc,gcampax/ghc,siddhanathan/ghc,shlevy/ghc,gridaphobe/ghc,nkaretnikov/ghc,ghc-android/ghc,anton-dessiatov/ghc,ryantm/ghc,mcmaniac/ghc,forked-upstream-packages-for-ghcjs/ghc,christiaanb/ghc,ml9951/ghc,mcschroeder/ghc,oldmanmike/ghc,siddhanathan/ghc,sdiehl/ghc,AlexanderPankiv/ghc,ghc-android/ghc,nomeata/ghc,tibbe/ghc,acowley/ghc,nkaretnikov/ghc,nathyong/microghc-ghc,da-x/ghc,gridaphobe/ghc,nushio3/ghc,spacekitteh/smcghc,holzensp/ghc,green-haskell/ghc,vikraman/ghc,spacekitteh/smcghc,hferreiro/replay,sdiehl/ghc,GaloisInc/halvm-ghc,sgillespie/ghc,urbanslug/ghc,ryantm/ghc,mcmaniac/ghc,anton-dessiatov/ghc,da-x/ghc,lukexi/ghc,elieux/ghc,mettekou/ghc,olsner/ghc,forked-upstream-packages-for-ghcjs/ghc,tjakway/ghcjvm,snoyberg/ghc,ezyang/ghc,forked-upstream-packages-for-ghcjs/ghc,da-x/ghc,holzensp/ghc,acowley/ghc,sgillespie/ghc,nkaretnikov/ghc,tibbe/ghc,ghc-android/ghc,green-haskell/ghc,snoyberg/ghc,sdiehl/ghc,bitemyapp/ghc,snoyberg/ghc,TomMD/ghc,wxwxwwxxx/ghc,jstolarek/ghc,mfine/ghc,bitemyapp/ghc,tibbe/ghc,siddhanathan/ghc,forked-upstream-packages-for-ghcjs/ghc,lukexi/ghc-7.8-arm64,nomeata/ghc,mettekou/ghc,wxwxwwxxx/ghc,nkaretnikov/ghc,anton-dessiatov/ghc,ghc-android/ghc,mfine/ghc,olsner/ghc,lukexi/ghc,lukexi/ghc-7.8-arm64,da-x/ghc,sdiehl/ghc,nkaretnikov/ghc,olsner/ghc,lukexi/ghc-7.8-arm64,hferreiro/replay,sdiehl/ghc,spacekitteh/smcghc,ekmett/ghc,da-x/ghc,tjakway/ghcjvm,ekmett/ghc,snoyberg/ghc,gridaphobe/ghc,GaloisInc/halvm-ghc,nathyong/microghc-ghc,ml9951/ghc,nathyong/microghc-ghc,AlexanderPankiv/ghc,AlexanderPankiv/ghc,elieux/ghc,ezyang/ghc,frantisekfarka/ghc-dsi,snoyberg/ghc,wxwxwwxxx/ghc,vikraman/ghc,AlexanderPankiv/ghc,gcampax/ghc