Remove debugging output.
Release 0.0.20.

Closes #118.
Merge branch `release-0.0.20` into `master`.
Notes on invocation.
Looping.
Tell them that it is terse, nesting is meaningful.
Implement endless loops.

Closes #119.
Implement counted loops.

Closes #120.
Implement each loop.

Closes #121.

File                             Raw         Min         Zip     Min/Zip
index.js                 15947/15.57  4942/04.83  4483/04.38  1830/01.79
Implement gathered loops.

Closes #122.
Update change log.
Release 0.0.21.

Closes #123.
Merge branch `release-0.0.21` into `master`.
Fix loop through errors, catch function `this`.

Closes #126.
Closes #125.

File                             Raw         Min         Zip     Min/Zip
index.js                 16644/16.25  5181/05.06  4607/04.50  1881/01.84
Fix loop return.

Closes #127.
Add `mkdirp` example to `README.md`.
Update change log.
Test finalizers run during explicit exit.

Closes #113.
Finalizers are not invoked with correct `this`.

Closes #124.
Release 0.0.22.