fix scalaz to stable version 7.0.4
Merge pull request #32 from larsrh/topic/stable-scalaz

Use stable scalaz version 7.0.4
Alphabetical order for combinators in `process1`
`orElse` now by default wraps emits in a view, which avoids some counterintuitive strictness in fallback
typo in comment
Minor doc improvements
bump to version 0.2-SNAPSHOT
Implement chunkBy2
Neater implementation of chunkBy2
Test chunkBy2
updated README
Merge pull request #33 from bmjames/chunkBy2

Chunk by comparing adjacent elements
Fixed zipAll and added unit test
More correct version of interrupt, but still not working for some cases