Préciser la version de picasoft-etherpad-landing-page qu'on veut utiliser

pica-etherpad/Dockerfile

@@ -2,6 +2,7 @@ FROM registry.picasoft.net:5000/pica-debian:latest
 MAINTAINER antoine@barbare.me
 
 ENV ETHERPAD_VERSION 1.6.5
+ENV ETHERPAD_LANDING_PAGE_VERSION v0.1
 ENV NODE_ENV=production
 
 #Copy configuration
@@ -52,7 +53,13 @@ RUN bin/installDeps.sh && \
         ep_user_font_size \
         ep_pads_stats
 
-RUN cd ~/src/templates && git clone https://framagit.org/DeBugs/picasoft-etherpad-landing-page.git && cp picasoft-etherpad-landing-page/index.html index.html && cp picasoft-etherpad-landing-page/static/* ../static/ -r && cd -
+RUN cd ~/src/templates && \
+    git clone https://framagit.org/DeBugs/picasoft-etherpad-landing-page.git && \
+    cd ./picasoft-etherpad-landing-page/ && \
+    git checkout ${ETHERPAD_LANDING_PAGE_VERSION} && \
+    cp ./index.html ../index.html && \
+    cp ./static/* ../../static/ -r && \
+    cd -