fix issue#6-Moving between screens error
Merge branch 'develop'

Conflicts:
	putWindow@clemens.lab21.org/extension.js
Merge branch 'develop'

Conflicts:
	putWindow@clemens.lab21.org/extension.js
Merge branch 'develop'
Merge branch 'release/v9'
chnaged settings text for feature #31
fix for #28
quick test for #33
* add new config option 'center-keep-width' * use TabView instead of expander in preferences window #33
intelligen corner movement should work with all corner settings
* fix prefs window to not grow when opened * added description to tabs * @73 please check the move focus text
updated changelog to include changes made since april
fixed move-focus description
fix typos
update metadata.json#description (extensions.gnome.org)
prefs can use Gtk.Notebook directly. no need for a additional grid
Merge branch 'release/v13'
fix moving of maximized window between screens
fix minor typo: tree -> three
Merge pull request #36 from krlmlr/master

fix minor typo: tree -> three