Updated Kazakh translation
Updates Persian Translations
updated for version 3.14.1
Make the message dialogs more modern

Make it a real GtkMessageDialog.

Also, remove the icon, we not needs it anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=735438
Make the error dialogs more modern

Make it a real GtkMessageDialog.

Also, remove the icon, we not needs it anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=735438
request-dialog: Remove the unneeded image

https://bugzilla.gnome.org/show_bug.cgi?id=735438
file-selector-dialog: Use symbolic icon for the go up button

https://bugzilla.gnome.org/show_bug.cgi?id=735438
updated version number
updated for version 3.15.1
Change Finnish translation team web page to l10n.gnome.org
Update Aragonese translation
Update Vietnamses translation

Signed-off-by: Trần Ngọc Quân <vnwildman@gmail.com>
Updated Dutch translation Master
Fixes to Catalan translation
Updated Romanian Translation