ikiwiki/ bugs/ wiki links still processed inside code blocks

In markdown syntax, none of the other special characters get processed inside a code block. However, in ikiwiki, [[wiki links|wikilink]] and [[preprocessor directives|preprocessordirective]] still get processed inside a code block, requiring additional escaping. For example, [links don't work](#here), but a <a href="../wikilink.html">wikilink</a> becomes HTML. --JoshTriplett

Indented lines provide a good way to escape a block of text containing markdown syntax, but ikiwiki links like [[this]] are still interpreted within such a block. I think that intepretation should not be happening. That is I should be able to write:

this

and have it render like:

[[this]]

--cworth