All labels reworked

The general rule should be that all labels should be:
- wrapping (the best choice),
- or ellipsizing,
- or both above,
- or one should be able to explain why this will never ever
  cause the window grow too much horizontally.

Also when wrapping we should not hesitate to set max-width-chars
to even unreasonably small positive value because despite its name
this is the default width of the label rather than maximum and
the label will be larger if its parent is wide enough.

https://bugzilla.gnome.org/show_bug.cgi?id=735994
https://bugzilla.redhat.com/show_bug.cgi?id=1282610



Signed-off-by: Richard Hughes <richard@hughsie.com>