A small daemon that checks for updates when start session. If found,
show a notification that suggests open gpk-update-viewer to update.

This was tested on Fedora 20 and Huayra 3.0/Debien Jessie with
packagekit versions 0.9.4 and 1.0.1 respectively.

Build deps:
	* libpackagekit-glib-devel
	* libnotify-dev

Debug:
	G_MESSAGES_DEBUG=all ./pk-updates-notifier