Install ihaskell-widgets separately for travis
Install ihaskell-widgets separately for travis

artuuge/IHaskell,wyager/IHaskell,qzchenwl/IHaskell,franklx/IHaskell,sumitsahrawat/IHaskell,kfiz/IHaskell,thomasjm/IHaskell,FranklinChen/IHaskell,sumitsahrawat/IHaskell,wyager/IHaskell,wyager/IHaskell,franklx/IHaskell,beni55/IHaskell,franklx/IHaskell,qzchenwl/IHaskell,kfiz/IHaskell,thomasjm/IHaskell,artuuge/IHaskell,beni55/IHaskell,sumitsahrawat/IHaskell,gibiansky/IHaskell,thomasjm/IHaskell,gibiansky/IHaskell,beni55/IHaskell,qzchenwl/IHaskell,gibiansky/IHaskell,kfiz/IHaskell,kfiz/IHaskell,beni55/IHaskell,wyager/IHaskell,FranklinChen/IHaskell,artuuge/IHaskell,FranklinChen/IHaskell,franklx/IHaskell,thomasjm/IHaskell,FranklinChen/IHaskell,artuuge/IHaskell,qzchenwl/IHaskell