Merge branch 'release/0.2.1' into develop
Tweak layout of package definition
Add Peter as maintainer to package definition
Add Peter as author to LICENSE
Merge branch 'feature/administrivia' into develop
Merge Macro.Monad mod (from elixir_pipes) into Monad mod (WIP)
Remove unnecessary function call
Rename functions
Tweak layout
Merge branch 'feature/merge-macro-code' into develop
Add test for `let`
Add docs to Either, change arg order in either/3

In Elixir the subject (most important argument) always comes first so that |>
pipelining may work.
Merge branch 'pm-either-docs' into develop
Make test dir structure fit the common standard
Remove extra whitespace from tuple
Allow `use Monad` to import the `m` macro

Import and require are two different things, with `use` they now are a single
line.
Merge branch 'develop' of github.com:rmies/monad into develop
Use alias in either doctest
Merge branch 'pm-use-monad' into develop
Update version in mix file