Merge pull request #49 from dnk/gtk3

fix gtk3 warnings
Sync translations with transifex
Update NEWS
Bump version to 1.7.90
Sync translations with transifex
Sync translations with transifex
Sync translations with transifex
Bump version to 1.8.0
Fix build with --disable-upower
Merge pull request #50 from cygwinports/master

Fix build with --disable-upower
Add autostart of accessibility apps
Update NEWS
Sync translations with transifex
Bump version to 1.8.1
Sync translations with transifex
Bump version to 1.9.0
Fix progress bar usage with GTK3
Update org.mate.SessionManager.xml

Fixed a typo.
Typo fix in man pages, close #52

Patch by Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Merge pull request #51 from ikem-krueger/patch-1

Update org.mate.SessionManager.xml