dashboard: add get_text template filter for HRO's

circle/dashboard/templatetags/hro.py

+from django.template import Library
+
+
+register = Library()
+
+
+@register.filter
+def get_text(human_readable, user):
+    if human_readable is None:
+        return u""
+    else:
+        return human_readable.get_text(user)