bumped build, made dependency on fixed scalaz.concurrent task
More robust implementation of `forwardFill`
`range` and `ranges` unit tests
End is now an Exception again, which fixes unit tests. May want to revisit this at some point, and have collect catch control throwables, not just exceptions.
Added contramapL and contramapR for Tee/Wye
Added `Process.lazily`
Added `wye.either`, for nondeterministic merge of two streams with different types into a \/
renamed byip and byipWith to byipL and byipWithL to indicate they are left biased, and prefer to pull from the left when no values are buffered
Moving tests out of ProcessSpec into separate files
Fixed issue #11 and added unit test. Issue was `eval` was not carrying forward latest finalizers. Starting to build out some additional unit tests for testing exception safety.
Switched to range rather than stream for emitSeq, also made List the default sequence, in preparation for adding a Suspend constructor  to Process
Added cause to Halt constructor, needed for exception safety in pure code
map/flatMap now properly handle exceptions in pure code, added unit tests for this
`eval` now uses `causedBy` combinator
Merge branch 'master' of github.com:Spinoco/scalaz-stream

Conflicts:
	build.sbt
Merge branch 'master' of github.com:scalaz/scalaz-stream
updated version