Merge branch 'release/v0.1.2' into develop
Generalize Concurrently (#4)
s/base/b/
Add implementation note
Add haddock comment for Concurrently
Merge branch 'feature/generalized-Concurrently' into develop

Conflicts:
	src/Control/Concurrent/Async/Lifted.hs
Bump up to v0.2.0
Add CHANGELOG.md
Merge branch 'release/v0.2.0'