- Package also glib-2.0 schema

- Update to version 0.6.3:
* Bumped version to v0.6.3
* Fixed bug where replacing notifitions aren't visible
* Updated Pkgbuild checksums
* Bumped version to 0.6.2
* Fixed nasty hover bug after first notification
* Updated style.css documentation
* Replaced state cacher with gsettings
* [Feature] Click outside Control Center to close (#133)
* Fixed notification trying to set icon from invalid .desktop file
* Renamed all notiWindow.* files to notificationWindow.*