Log Message:
Update sunbird to 0.3alpha2, the second official release of the Mozilla Sunbird
project.

>From the Release Notes:

Sunbird 0.3 alpha2 is not intended to be a production-quality release. (See
Limitations and Known Bugs) Instead, it is being released largely in order to
showcase/test the advanced new view code. This includes:

    * Inline editing of event titles
    * Restoration of drag and drop editing in the day/week views

In addition to showcasing and testing the new views, Sunbird 0.3 alpha2 aims to
fix many bugs identified in Sunbird 0.3 alpha1. Some highlights are:

    * Ability to modify individual elements of a recurring event
    * Fewer import/export errors
    * Better error reporting
    * Improved alarm functionality
    * A new, more intuitive New Event dialog
    * Better Mac support
    * Many other minor bug fixes