avoid "levels is 0" warning if no kbd backlight present
remove "battery recall" logic

the database is outdated several years now and the whole interface is
removed from current UPower release anyway, so let's get rid of it in
m-p-m, too
port mate-power-manager to upower-0.99 API

fix mate-power-manager for current upower versions
Improve UPower1 support
Other round of fixes for UPower 0.99 API changes
Remove autogenerated file

Closes https://github.com/mate-desktop/mate-power-manager/issues/103
Rename mate-power-bugreport.sh -> tools/mate-power-manager-bugreport

Closes https://github.com/mate-desktop/mate-power-manager/issues/101
Add keywords key to .desktop file

Closes https://github.com/mate-desktop/mate-power-manager/issues/100
Update vendor_url in policy file
Fix typo in Makefile.am