v2.2

PR #180 -- Fixed override of the long time format for Australian locale
Issue #178 -- fix date interpretation when day is also provided
Issue #176 -- fix "some duration before noon/dinner/etc"
Issue #175 -- update code example in readme
Issue #174 -- fix "ass" being interpreted as a time
Issue #169 -- On Python 2.6
Issue #147 -- examples/README refers to nonexistent (deleted?) file
Issue #158 -- Switch to CircleCI from Travis
Issue #161 -- Not able to parse javascript's ISO string format