Add new config variable and rename opaque_domain -> nopaque_domain

app/templates/nopaque.html.j2

@@ -185,7 +185,11 @@
       <div class="footer-copyright">
         <div class="container">
           © 2020 Bielefeld University
-          <a class="btn-small right waves-effect waves-light" href="https://gitlab.ub.uni-bielefeld.de/sfb1288inf/opaque"><img src="{{ url_for('static', filename='images/gitlab-icon-1-color-white-rgb.png') }}" style="float: left; height: 24px; margin-top: 4.2px;">GitLab</a>
+          <div class="right right-align">
+            <a class="btn-small pink waves-effect waves-light" href="mailto:{{ config.NOPAQUE_CONTACT }}?subject={{ config.NOPAQUE_MAIL_SUBJECT_PREFIX }} Contact"><i class="left material-icons">rate_review</i>Contact</a>
+            <a class="btn-small green waves-effect waves-light" href=""><i class="left material-icons">feedback</i>Feedback</a>
+            <a class="btn-small orange waves-effect waves-light" href="https://gitlab.ub.uni-bielefeld.de/sfb1288inf/opaque"><img src="{{ url_for('static', filename='images/gitlab-icon-1-color-white-rgb.png') }}" style="float: left; height: 24px; margin-right: 10px; margin-top: 4.2px;">GitLab</a>
+          </div>
         </div>
       </div>
     </footer>

config.py

@@ -19,6 +19,7 @@ class Config:
 
     ''' ### nopaque ### '''
     NOPAQUE_ADMIN = os.environ.get('NOPAQUE_ADMIN')
+    NOPAQUE_CONTACT = os.environ.get('NOPAQUE_CONTACT')
     NOPAQUE_MAIL_SENDER = os.environ.get('NOPAQUE_MAIL_SENDER')
     NOPAQUE_MAIL_SUBJECT_PREFIX = '[nopaque]'
     NOPAQUE_STORAGE = os.environ.get('NOPAQUE_STORAGE')

nopaque.env.tpl

@@ -23,10 +23,9 @@ MAIL_USE_TLS=
 MAIL_USERNAME=
 MAIL_PASSWORD=
 
-### Opaque Notifications ###
-OPAQUE_DOMAIN=
-
 ### nopaque ###
 NOPAQUE_ADMIN=
+NOPAQUE_CONTACT=
+OPAQUE_DOMAIN=
 NOPAQUE_MAIL_SENDER=
 NOPAQUE_STORAGE=