library/roles/shinyproxy/templates/shinyproxy-conf.yml.j2: Remove the groups limitations from the example apps.

shinyproxy/templates/shinyproxy-conf.yml.j2

@@ -39,11 +39,9 @@ shiny:
     description: Application which demonstrates the basics of a Shiny app
     docker-cmd: ["R", "-e shinyproxy::run_01_hello()"]
     docker-image: openanalytics/shinyproxy-demo
-    groups: scientists, mathematicians
   - name: 06_tabsets
     docker-cmd: ["R", "-e shinyproxy::run_06_tabsets()"]
     docker-image: openanalytics/shinyproxy-demo
-    groups: scientists
 {% endif %}
 {% if shinyproxy_apps is defined %}
 {% for app in shinyproxy_apps %}
@@ -52,6 +50,9 @@ shiny:
     description: {{ app.description }}
     docker-cmd: ["R", "-e {{ app.cmd }}"]
     docker-image: {{ app.docker_image }}
+    {% if app.groups is defined %}
+    groups: {{ app.groups }}
+    {% endif %}
 {% endfor %}
 {% endif %}