[Fieldtrip] oops -- obsolete examples in FieldTrip

There was an obsolete examples/ directory in the FieldTrip release, including examples/Test.hs. I've removed that directory in the latest version and tidied up the examples a bit. You can run try out FieldTrip via the reactive-fieldtrip package, as described on http://haskell.org/haskellwiki/FieldTrip . - Conal