add quickselect. cleaning up medianOfMedians, have yet to write partition. a nice abstraction just happened (indexOf).
finish select, partition, selectSlow, tests.
debugging "index too large" and "n out of bounds in select" errors.
already fix two bugs in select: the n in otherwise & the param in take were off by one
Merge branch 'master' of https://github.com/hypotext/hask