dockerfile: install dmz-cursor-theme package

Dockerfile

@@ -3,7 +3,7 @@ FROM sameersbn/debian:jessie.20140918
 RUN wget -q -O - "https://dl-ssl.google.com/linux/linux_signing_key.pub" | sudo apt-key add - \
  && echo "deb http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list \
  && apt-get update \
- && apt-get install -y xz-utils file locales dbus-x11 pulseaudio \
+ && apt-get install -y xz-utils file locales dbus-x11 pulseaudio dmz-cursor-theme \
       fonts-dejavu fonts-liberation hicolor-icon-theme google-chrome-stable \
       libcanberra-gtk3-0 libcanberra-gtk-module libcanberra-gtk3-module \
       libasound2 libgtk2.0-0 libdbus-glib-1-2 libxt6 libexif12 \