added sink to signal
Added windowing processes.
Merge branch 'master' of https://github.com/scalaz/scalaz-stream

Conflicts:
	src/main/scala/scalaz/stream/Process.scala
Merge pull request #21 from Spinoco/async-pr

added sink to signal
Added cobind to Process
Added foldMap
Fixed up foldMap
fixed bytes so the toArray honours actual size of underlying array
Merge branch 'master' of github.com:scalaz/scalaz-stream into main-master
Merge pull request #24 from Spinoco/main-master

fixed Bytes so the toArray honours actual size of underlying array
Shuffling the async types into their own package in preparation for adding topics, and read only version of signal
Split Signal into mutable and readonly interfaces
Documentation. As part of this, renamed wrap to eval.
feed1 now collapses adjacent emits, also added flush combinator
Minor tweak to creating streams example
Merge branch 'master' into examples