travis: Install process via cabal
travis: Install process via cabal

and install to global data base (bad practice, but ok on a throw-away CI
system).

forked-upstream-packages-for-ghcjs/ghc,vikraman/ghc,ezyang/ghc,nushio3/ghc,snoyberg/ghc,shlevy/ghc,oldmanmike/ghc,acowley/ghc,spacekitteh/smcghc,olsner/ghc,fmthoma/ghc,siddhanathan/ghc,mfine/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,TomMD/ghc,ml9951/ghc,gridaphobe/ghc,oldmanmike/ghc,vikraman/ghc,tjakway/ghcjvm,ml9951/ghc,bitemyapp/ghc,anton-dessiatov/ghc,jstolarek/ghc,elieux/ghc,nathyong/microghc-ghc,snoyberg/ghc,ezyang/ghc,shlevy/ghc,nathyong/microghc-ghc,mfine/ghc,christiaanb/ghc,olsner/ghc,ml9951/ghc,olsner/ghc,urbanslug/ghc,holzensp/ghc,ghc-android/ghc,da-x/ghc,lukexi/ghc,bitemyapp/ghc,mcschroeder/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,tjakway/ghcjvm,ezyang/ghc,anton-dessiatov/ghc,vTurbine/ghc,snoyberg/ghc,jstolarek/ghc,wxwxwwxxx/ghc,forked-upstream-packages-for-ghcjs/ghc,urbanslug/ghc,olsner/ghc,nushio3/ghc,gcampax/ghc,acowley/ghc,christiaanb/ghc,mcschroeder/ghc,wxwxwwxxx/ghc,vTurbine/ghc,tjakway/ghcjvm,anton-dessiatov/ghc,green-haskell/ghc,oldmanmike/ghc,ezyang/ghc,fmthoma/ghc,spacekitteh/smcghc,ghc-android/ghc,green-haskell/ghc,urbanslug/ghc,oldmanmike/ghc,nathyong/microghc-ghc,sdiehl/ghc,nkaretnikov/ghc,mcschroeder/ghc,sgillespie/ghc,TomMD/ghc,olsner/ghc,snoyberg/ghc,green-haskell/ghc,elieux/ghc,TomMD/ghc,oldmanmike/ghc,holzensp/ghc,da-x/ghc,ghc-android/ghc,tjakway/ghcjvm,urbanslug/ghc,AlexanderPankiv/ghc,oldmanmike/ghc,green-haskell/ghc,ezyang/ghc,snoyberg/ghc,mettekou/ghc,TomMD/ghc,nushio3/ghc,mcschroeder/ghc,fmthoma/ghc,wxwxwwxxx/ghc,christiaanb/ghc,da-x/ghc,vTurbine/ghc,holzensp/ghc,anton-dessiatov/ghc,forked-upstream-packages-for-ghcjs/ghc,gridaphobe/ghc,sdiehl/ghc,vikraman/ghc,gcampax/ghc,shlevy/ghc,forked-upstream-packages-for-ghcjs/ghc,GaloisInc/halvm-ghc,bitemyapp/ghc,vTurbine/ghc,nkaretnikov/ghc,nkaretnikov/ghc,spacekitteh/smcghc,wxwxwwxxx/ghc,forked-upstream-packages-for-ghcjs/ghc,lukexi/ghc,siddhanathan/ghc,da-x/ghc,ghc-android/ghc,nathyong/microghc-ghc,oldmanmike/ghc,anton-dessiatov/ghc,nushio3/ghc,AlexanderPankiv/ghc,ml9951/ghc,GaloisInc/halvm-ghc,sdiehl/ghc,GaloisInc/halvm-ghc,elieux/ghc,snoyberg/ghc,ml9951/ghc,urbanslug/ghc,wxwxwwxxx/ghc,gcampax/ghc,green-haskell/ghc,tjakway/ghcjvm,forked-upstream-packages-for-ghcjs/ghc,sgillespie/ghc,shlevy/ghc,urbanslug/ghc,sgillespie/ghc,sdiehl/ghc,vTurbine/ghc,sgillespie/ghc,mettekou/ghc,sdiehl/ghc,fmthoma/ghc,shlevy/ghc,holzensp/ghc,sdiehl/ghc,vTurbine/ghc,spacekitteh/smcghc,mcschroeder/ghc,da-x/ghc,ghc-android/ghc,vikraman/ghc,shlevy/ghc,lukexi/ghc,mettekou/ghc,lukexi/ghc,siddhanathan/ghc,mfine/ghc,christiaanb/ghc,gcampax/ghc,holzensp/ghc,gcampax/ghc,acowley/ghc,jstolarek/ghc,anton-dessiatov/ghc,gridaphobe/ghc,TomMD/ghc,sgillespie/ghc,GaloisInc/halvm-ghc,anton-dessiatov/ghc,TomMD/ghc,tjakway/ghcjvm,olsner/ghc,siddhanathan/ghc,snoyberg/ghc,nkaretnikov/ghc,elieux/ghc,olsner/ghc,jstolarek/ghc,mfine/ghc,bitemyapp/ghc,mettekou/ghc,ml9951/ghc,sdiehl/ghc,christiaanb/ghc,ml9951/ghc,nushio3/ghc,mfine/ghc,fmthoma/ghc,spacekitteh/smcghc,fmthoma/ghc,siddhanathan/ghc,tjakway/ghcjvm,acowley/ghc,fmthoma/ghc,gcampax/ghc,nathyong/microghc-ghc,ezyang/ghc,GaloisInc/halvm-ghc,acowley/ghc,forked-upstream-packages-for-ghcjs/ghc,gridaphobe/ghc,AlexanderPankiv/ghc,gridaphobe/ghc,lukexi/ghc,gridaphobe/ghc,wxwxwwxxx/ghc,jstolarek/ghc,siddhanathan/ghc,nkaretnikov/ghc,nushio3/ghc,GaloisInc/halvm-ghc,sgillespie/ghc,da-x/ghc,ml9951/ghc,TomMD/ghc,vTurbine/ghc,nkaretnikov/ghc,sgillespie/ghc,christiaanb/ghc,ghc-android/ghc,nathyong/microghc-ghc,acowley/ghc,da-x/ghc,christiaanb/ghc,AlexanderPankiv/ghc,elieux/ghc,mfine/ghc,elieux/ghc,nkaretnikov/ghc,ezyang/ghc,mettekou/ghc,nathyong/microghc-ghc,vikraman/ghc,acowley/ghc,mfine/ghc,mettekou/ghc,ghc-android/ghc,gcampax/ghc,vikraman/ghc,GaloisInc/halvm-ghc,urbanslug/ghc,bitemyapp/ghc,nushio3/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,vikraman/ghc,shlevy/ghc,elieux/ghc,gridaphobe/ghc,mcschroeder/ghc,mettekou/ghc