Added note about libibus-1.0-dev to the Linux README.

docs/README-linux.md

@@ -19,7 +19,7 @@ sudo apt-get install build-essential mercurial make cmake autoconf automake \
 libtool libasound2-dev libpulse-dev libaudio-dev libx11-dev libxext-dev \
 libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev \
 libxss-dev libgl1-mesa-dev libesd0-dev libdbus-1-dev libudev-dev \
-libgles1-mesa-dev libgles2-mesa-dev libegl1-mesa-dev
+libgles1-mesa-dev libgles2-mesa-dev libegl1-mesa-dev libibus-1.0-dev
 
 Ubuntu 14.04 can also add "libwayland-dev libmirclient-dev libxkbcommon-dev"
 to that command line for Wayland and Mir support.