search: Use header bar in the location dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
datetime: Use header bar in the datetime and the timezone dialogs

The seatch entry in the timezone dialog is moved to the
title of the header bar.

https://bugzilla.gnome.org/show_bug.cgi?id=724299
info: Use header bar in the extra options dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
mouse: Use header bar in the test settings dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
power: Use header bar in the automatic suspend dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
sharing: Use header bar in all the dialogs

https://bugzilla.gnome.org/show_bug.cgi?id=724299
background: Use header bar in the chooser dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
notifications: Use header bar in the edit dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
display: Use header bar in the dialogs

https://bugzilla.gnome.org/show_bug.cgi?id=724299
privacy: Use header bar in all the dialogs

https://bugzilla.gnome.org/show_bug.cgi?id=724299
sound: Use header bar in the testing dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
user-accounts: Use header bar in the history dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
common: Use header bar in the language chooser dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
region: Use header bar in all the dialogs

https://bugzilla.gnome.org/show_bug.cgi?id=724299
universal-access: Use header bar in all the dialogs

https://bugzilla.gnome.org/show_bug.cgi?id=724299
keyboard: Use header bar in the custom shortcut dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
user-accounts: Use header bar in the account dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
user-accounts: Use header bar in the password dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
user-accounts: Use header bar in the photo dialog

https://bugzilla.gnome.org/show_bug.cgi?id=724299
Updated Hebrew translation