[gpm] GNOME Power Manager 2.20.2

[Richard Hughes <hughsient gmail com>]

GNOME Power Manager is a session daemon that makes it easy to manage the
power on your laptop or desktop system.

This stable release contains important fixes since 2.20.1 was released.
Distributions should consider upgrading gnome-power-manager via errata
packages if possible.

==============
Version 2.20.2
==============

- Fixed #497298, The +/- buttons on the brightness applet sometimes get stuck. (Simon Zheng)
- Fixed #497298, Avoid float computation error (Simon Zheng)
- Fixed #497328, Incorrect documentation for --enable-checkfg (Josselin Mouette)
- Fixed #496367, Work out the size of the label text to avoid truncating numbers in other locales (Richard Hughes)
- Correct much of the documentation in many different ways (Bob Mauchin)
- Use _NEVER for sleep problems notification, so that the user can always see it (Rodrigo Moya)
- Pass make distcheck on a desktop machine without a battery (Richard Hughes)
- Fix the keyboard brightness up button. From the ubuntu patch archive (Richard Hughes)
- Use the correct DBUS return types now HAL enforces the return type (David Zeuthen)

Translations:
- Updated et: Priit Laes
- Updated sv: Daniel Nylander
- Updated ja: Takeshi AIHANA