Updated Czech translation
goa: Be more intelligent about the visibility on network status

If an account has been configured or if you're viewing page don't change
the visibility. This can be jarring if you lose connection when on the
page or if you want to remove an account but lost connection.

https://bugzilla.gnome.org/show_bug.cgi?id=700392
build: Remove player module
build: Add connman page

Replaces network manager page with connman
assistant-gd: Disconnect visible-child signal on dispose

This signal gets fired on closing gnome-initial-setup but the page has
been disposed by this time so update_action_widget causes a segfault.
connman: Hack to fix grab issue
build: Fix race on generated file when parallel building
connman: Add service checks to make sure we don't crash on a non item