Add source links to the documentation
Simplify stripNone by using collect
Improve performance of process1.collect
Merge pull request #146 from fthomas/stripNone

Simplify process1.stripNone and improve process1.collect
Merge pull request #143 from fthomas/source-links

Add source links to the documentation
Merge branch 'master' into benchmarks

Conflicts:
	src/main/scala/scalaz/stream/process1.scala