Implement a new tag that disables syntax processing on its contents

The

and {code} tags do not disable syntax processing on their contents.

For example, the following C++ code sample results in a stack dump because Velocity processing is not disabled:

{code}
...
#include <stdio.h>
...
{code}

There has been some discussion on whether new tags should be created, to allow backwards compatibility. See this document for details:

http://old.xwiki.org/xwiki/bin/view/Dev/SyntaxProcessingIssues