support pagenames that have uppercase, while still allowing them to be
linked to using any case.
-Also, newly created pagenames that include upper case characters should perhaps not automatically be converted to lower case then.
+Also, newly created pagenames that include upper case characters should
+perhaps not automatically be converted to lower case then.
+
+Also, it's currently possible to check in a filename with uppercase and
+ikiwiki will render it that way, but fail to edit it online, fail to link to
+it properly from other pages, etc.