[evolution] String change for 3.11.91

[Milan Crha <mcrha redhat com>]

        Hi,
I only yesterday committed [1], a change for [2], which changes some
translated strings in evolution. While some are changed to reuse already
translated strings, some are replaced with new strings.
        Bye,
        Milan

[1] https://git.gnome.org/browse/evolution/commit/?id=3176e83
[2] https://bugzilla.gnome.org/show_bug.cgi?id=725010