[Feature] Alias Support (#151)

Fixes #149

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#151

templates/actions/objects/edge.html

@@ -1,4 +1,8 @@
 {% if meta.can_edit %}
+    <li>
+        <a role="button" data-toggle="modal" data-target="#set_aliases_modal">
+            <i class="glyphicon glyphicon-plus"></i> Set Aliases</a>
+    </li>
     <li>
         <a role="button" data-toggle="modal" data-target="#set_scenario_modal">
             <i class="glyphicon glyphicon-plus"></i> Set Scenarios</a>