Force installation of 'alex' and 'happy' for travis
Add c99 functions for floating point `abs`
Reorder entries in cabal file

Reorder the modules in the cabal file to make sure that `cabal repl` ends
up in `Feldspar.Compiler`.
Remove Save.
Merge pull request #195 from pjonsson/no-save

Remove Save.
Update test outputs.
Merge pull request #196 from pjonsson/simplify-getix

Update test outputs following fronted changes.