Update to v0.31.2

Dockerfile

@@ -1,7 +1,7 @@
 FROM cloudron/base:0.10.0
 MAINTAINER Authors name <support@cloudron.io>
 
-RUN mkdir -p /app/code
+RUN mkdir -p /app/code/nginx
 RUN mkdir -p /app/data/templates
 
 WORKDIR /app/code
@@ -23,6 +23,7 @@ RUN sed -e 's,#TURNSERVER_ENABLED=1,TURNSERVER_ENABLED=1,' -i /etc/default/cotur
 # Synapse
 # a local copy is needed because of the mail templates, else the pip installation would suffice
 RUN git clone https://github.com/matrix-org/synapse.git
+RUN cd /app/code/synapse && git pull origin master
 
 RUN apt-get install -y build-essential python2.7-dev libffi-dev \
 	    python-pip python-setuptools sqlite3 \
@@ -37,7 +38,7 @@ RUN pip install https://github.com/matrix-org/synapse/tarball/master
 
 
 # copy index.html
-COPY index.html /app/code
+COPY index.html /app/code/nginx
 
 RUN chown -R www-data.www-data /app/code /app/data