Added support for foreign function calls in the array language.
Added a Typeable constraint to ForeignFun and removed unnecessary members.
Merge pull request #78 from robeverest/master

An FFI for the array language
update submodules cuda, io.
Added support for foreign scalar functions.
remove redundant helper file
rearrange the foreign stuff to after the other scalar classes
wibbles
improve 'toList'
update github issue tracker URL in internal error message

ping AccelerateHS/accelerate#81
wibble
update submodules: cuda, examples
wibble
use default Data.Map
backport modifyIORef'
update submodules: cuda