Implement using absolute creation and edit times

As suggested in #3

tuir/subreddit_page.py

@@ -332,12 +332,14 @@ class SubredditPage(Page):
                 form.append((lambda data: data['created'],
                     lambda data: self.term.attr('Created'), first))
             elif item == "%R":
-                raise NotImplementedError("'%R' subreddit_format specifier not yet supported")
+                form.append((lambda data: data['created_exact'],
+                    lambda data: self.term.attr('Created'), first))
             elif item == "%e":
                 form.append((lambda data: data['edited'],
                     lambda data: self.term.attr('Created'), first))
             elif item == "%E":
-                raise NotImplementedError("'%E' subreddit_format specifier not yet supported")
+                form.append((lambda data: data['edited_exact'],
+                    lambda data: self.term.attr('Created'), first))
             elif item == "%a":
                 form.append((lambda data: data['author'],
                     lambda data: self.term.attr('SubmissionAuthor'), first))

tuir/templates/tuir.cfg

@@ -79,9 +79,9 @@ hide_username = False
 ; %v vote status
 ; %c comment count
 ; %r relative creation time
-; %R absolute creation time (NotImplemented)
+; %R absolute creation time
 ; %e relative edit time
-; %E absolute edit time (NotImplemented)
+; %E absolute edit time
 ; %a author
 ; %S subreddit
 ; %u short url - 'self.reddit' or 'gfycat.com' for example