Show full date/time in the revision admin view

When a revision is shown in the admin interface, the year of the date is
not displayed. Change to isoformat to show every field of the
DateTimeField.
Address #23

Author: diegorusso

codespeed/models.py

@@ -139,7 +139,7 @@ def __str__(self):
         if self.date is None:
             date = None
         else:
-            date = self.date.strftime("%b %d, %H:%M")
+            date = self.date.isoformat(sep=" ")
         string = " - ".join(filter(None, (date, self.commitid, self.tag)))
         if self.branch.name != self.branch.project.default_branch:
             string += " - " + self.branch.name