Merge branch 'release/0.2.0'
Bumps version numbers for development version. Refs #1.
Fixes nake md5 task. Refs #2.
Fixes sufix typo in babel description.
Updates release url in release steps.
Improves md5 nake task to automate releases. Refs #2.
Avoids absolute urls extension mangling. Refs #2.
Adds installation of babel package to docs. Refs #3.
Documents task in changes log. Refs #3.
Bumps version numbers for v0.2.2 release. Refs #7.
Merge branch 'release/0.2.2' into stable