[l10n] Added Italian translation.
Updated Spanish translation
core/ui: add '--keysize' option to handle non-default key sizes (bgo #706775)

If openvpn server is configured with a non-default key size, clients have to use
the same size too. We add an option to use custom key size in GUI and handle that
in the service and properties code including import/export too.
However, note that using key sizes different from cipher-specific defaults is
not recommended. List available ciphers and default key sizes by
'openvpn --show-ciphers'.

man openvpn: search --keysize

https://bugzilla.gnome.org/show_bug.cgi?id=706775
properties: simplify code dealing with check/spin button changes, saving code
Updated Spanish translation
properties: call bindtextdomain() and bind_textdomain_codeset()

Make sure gettext knows the translations are in UTF-8, or else they'll
get garbled if the user's domain isn't UTF-8.

https://bugzilla.gnome.org/show_bug.cgi?id=702153
Updated Polish translation
Updated Slovenian translation
Updated Lithuanian translation
Updated Brazilian Portuguese translation
[l10n] Updated Italian translation.
Updated Hungarian translation
Updated Slovenian translation
Updated Galician translations
Finnish translation update
properties: fix Makefile.am in tests
Mark strings in the .desktop file as translatable

Like every other VPN plug-in does.
Updated Polish translation
Updated Czech translation
Updated Slovenian translation