Log Message:
Update to 1.2.31

Changelog:
Release 1.2.31 - November 13, 2011
This is a mixed bugfix and feature release.

Bugs fixed:
- Immediately update the number of tasks completed in the status bar of the
  task viewer when the user marks a task completed. (SF#3185805)
- When adding new tasks, Task Coach would first show them briefly as inactive
  before showing them as active. (SF#3085362)
- Only "preset" dates on new tasks.
- When changing a date/time inline, hitting enter in the date part of the
  control would close the inline control, but not change the date.
  (SF#3428503)
- The inline edit controls for dates/times didn't use the preferences for
  start and end of working day. (SF#3431160)
- Using drag and drop to change dates in the calendar view would produce
  erroneous results in some configurations. (SF#3428525)
- In some configurations, some hours would not be drawn in the calendar view
  in vertical mode. (SF#3428524)

Features added:
- When exporting to CSV, dates and times can optionally be put in separate
  columns.
- When exporting to CSV and HTML, the columns to be exported can be changed in
  the export dialog.
- Simple task statistics viewer added that shows a pie chart of the
  distribution of task states.