[notificationitem] respect property array settings
[notificationitem] implement get group properties
[notificationitem] now menu also work under unity
[script] &> doesn't work on dash
Merge branch 'notificationitem'
[notificationitem] implement LayoutUpdated
[notificationitem] fix typo
[notificationitem] delay the signal process, for workaround gtk app
[notificationitem] add some icon :D
[notificationitem] refine icon
[fcitx] be able to use RTLD_GLOBAL to load library for addon