updated Dockerfile:

* switch to latest Ubuntu LTS;
* install adblockparser, re2 and pyre2

Dockerfile

@@ -1,14 +1,24 @@
-FROM ubuntu:precise
-ENV DEBIAN_FRONTEND noninteractive    
-RUN sed 's/main$/main universe/' -i /etc/apt/sources.list && \        
-    apt-get update -q && \        
+FROM ubuntu:14.04
+ENV DEBIAN_FRONTEND noninteractive
+
+# software-properties-common contains "add-apt-repository" command for PPA conf
+RUN apt-get update && apt-get install -y software-properties-common
+
+RUN add-apt-repository -y ppa:pi-rho/security
+RUN sed 's/main$/main universe/' -i /etc/apt/sources.list && \
+    apt-get update -q && \
     apt-get install -y netbase ca-certificates python \
-        python-dev build-essential libicu48 \
-        xvfb libqt4-webkit python-twisted python-qt4
-ADD https://raw.github.com/pypa/pip/master/contrib/get-pip.py /get-pip.py        
-RUN python /get-pip.py 
+        python-dev build-essential \
+        xvfb libqt4-webkit python-twisted python-qt4 libre2-dev \
+        git-core
+
+ADD https://raw.github.com/pypa/pip/master/contrib/get-pip.py /get-pip.py
+RUN python /get-pip.py
 ADD . /app
-RUN pip install qt4reactor psutil raven supervisor supervisor-stdout
+RUN pip install qt4reactor psutil raven \
+                supervisor supervisor-stdout \
+                adblockparser \
+                git+https://github.com/axiak/pyre2.git@382bb743f16722b582cc2bac8fc08ff121dec20e#egg=re2
 RUN pip install /app
 EXPOSE 8050 8051 5023
-CMD ["/usr/local/bin/supervisord", "-c", "/app/supervisord.conf"] 
+CMD ["/usr/local/bin/supervisord", "-c", "/app/supervisord.conf"]