this brings haskall::default and haskall:multi inline
Merge branch 'master' of github.com:travis-ci/travis-cookbooks
Merge pull request #243 from dmalikov/master

drop haskell-platform from recipe[haskell::multi]
install cabal-install from ppa (thanks @sol)
run cabal update once so that the correct dirs are created
oops, correct the ppa for cabal-install
make sure .cabal/bin is on the path
Download Cassandra from Apache archive

It serves all versions, not just the most recent
one.
Update changes.md
Move what's in production to separate section.
Remove ghc-select