An abstract interface to highly-parameterizable queues/deques.

background: there exists a feature space for queues that extends between:
* simple, single-ended, non-concurrent, bounded queues
* double-ended, threadsafe, growable queues
with important points inbetween (such as the queues used for work-stealing).

this package includes an interface for deques that allows the programmer to use a single api for all of the above, while using the type-system to select an efficient implementation given the requirements (using type families).

this package also includes a simple reference implementation based on ioref and data.sequence.

this package provides a library for the haskell programming language, compiled for profiling. see http://www.haskell.org/ for more information on haskell.