mate-file-manager-1.5.5: Version bump
mate-dialogs-1.5.1: Version bump + use libnotify

Version bump to 1.5.1
Now uses x11-libs/libnotiy [1]

[1] https://github.com/mate-desktop/mate-dialogs/commit/9dc105f84341192d7bf6d2488bab9fb3fe998b14
mate-notification-daemon-1.5.2: Version bump + use libnotify

Version bump to 1.5.2
Now uses x11-libs/libnotiy [1]

[1] https://github.com/mate-desktop/mate-notification-daemon/commit/d263541b686f36a8f61c00eaee4d852ce5e8a766