[etherpad-web/oscp-backend] Install ep_delete_empty_pads

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 7337bea8188652008bdafb8bb7aeb67abcc5c159
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Wed May 13 10:08:24 2020 +0200

    Install ep_delete_empty_pads

 Dockerfile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/Dockerfile b/Dockerfile
index 82c7253..fb692d1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM centos/nodejs-12-centos7
+FROM centos/nodejs-10-centos7
 ARG ETHERPAD_VERSION="1.8.3"
 
 USER root
@@ -18,7 +18,7 @@ RUN curl -L -o /tmp/etherpad.tar  https://github.com/ether/etherpad-lite/tarball
 WORKDIR /opt/etherpad
 
 # Install a few default plugins:
-SHELL ["/usr/bin/scl", "enable", "rh-nodejs12"]
+SHELL ["/usr/bin/scl", "enable", "rh-nodejs10"]
 RUN npm install ep_adminpads \
     ep_align \
     ep_headings2 \
@@ -26,7 +26,7 @@ RUN npm install ep_adminpads \
     ep_markdown \
     ep_copy_paste_select_all \
     ep_copy_paste_images \
-    ep_set_title_on_pad \
+    ep_delete_empty_pads \
     ep_spellcheck
 
 RUN /opt/etherpad/bin/fix-permissions.sh /opt/etherpad && \