Add a recursive mode

[neongreen]

This would be useful for things like #107.

[moodmosaic]

Something like this seems to be working fine for me so far:

find . -name '*.hs' | xargs stylish-haskell -i

[peterbecich]

It has this

-r,--recursive           Recursive file search

but it doesn't work as I expect. Maybe I am using it incorrectly.