Vietnamese input in Skype with ibus-bogo

ibus-bogo is a Vietnamese input engine targeting IBus, an input method manager in GNU/Linux environments created by a group of talented Vietnamese developers. You can install it in Ubuntu by the following command:

$ sudo apt-get install ibus-bogo

Its github repo:

It works really well in the current release of  xUbuntu (13.10, 14.04) in comparison with ibus-unikey which is buggy. But,  there are still some annoying issues with ibus-bogo. One of them is Vietnamese input in Skype. The official documentations of ibus-bogo instructs us how to solve this problem by adding these lines to ~/.profile:

export GTK_IM_MODULE=ibus
export QT4_IM_MODULE=xim
export QT_IM_MODULE=xim
export XMODIFIERS=@im=ibus

Log out and log in again. Then, restart the ibus-daemon:

$ ibus-daemon -xdr

Notes: In Xubuntu 14.04, I have to do this every time the system startup/reboot or turn off / turn on Skype.