Releases/1.2.2

This is a stable release of Mahara 1.2. Stable releases are fit for
general use. If you find a bug, please report it to the tracker:

https://bugs.launchpad.net/mahara/+filebug

This release includes an upgrade path from 1.0. If you wish to
upgrade, we encourage you to make a copy of your website and test the
upgrade on it first, to minimise the effect of any potential
unforeseen problems.

Changes from 1.2.1:

 * Fix for broken upgrade in 1.2.1