added new parent page + minor css/js improvements

templates/parents.html

@@ -1,15 +1,15 @@
 {% extends "list.html" %}
 {% load static %}
 {% block title %}Parents{% endblock %}
-{% block element_name %}parent{% endblock %}
 {% block extra-head %}
     <link rel="stylesheet" href="{% static "parents.css" %}">
-    <script src="{% static "parents.js" %}"></script>
 {% endblock %}
 {% block extra-class %}{% if element.is_productive %}productive{% endif %}{% endblock %}
 {% block element %}
     <div class="name">{{ element.name }}</div>
-    <div class="project_num">({{ element.project_num }})</div>
+    {% if element.project_num %}
+        <div class="project_num">({{ element.project_num }})</div>
+    {% endif %}
 {% endblock %}
 {% block actions %}
     <button class="edit">Edit</button>