Fix bug 1335006

[a2sheppy]

Change jsxref macro to use <%- %> for the displayed text, so that special
characters like "<" and ">" draw correctly instead of showing up as "<"
etc.

[jwhitlock]

The text should be not be escaped if the <code> block is included (the default), and escaped if it is not included. I would expect:

{{jsxref("Ops", "<", "#Less_than_operator")}}
{{jsxref("Ops", "<", "#Less", false)}}

to produce:

<a href="/en-US/docs/Web/JavaScript/Reference/Ops#Less" title="JavaScript has ..."><code>></code></a>
<a href="/en-US/docs/Web/JavaScript/Reference/Ops#Less" title="JavaScript has ...">&amp;lt;</a>

[Elchi3]

I think John's proposal makes sense. Setting "request changes".

[jwhitlock]

When I run this locally:

jsxref 1: {{jsxref("Ops", ">", "#Less_than_operator")}}

jsxref 2: {{jsxref("Ops", ">", "#Less", 0)}}

I get the following HTML:

<p>jsxref 1: <a title="The documentation about this has not yet been written; please consider contributing!" class="new" href="/en-US/docs/Web/JavaScript/Reference/Ops#Less_than_operator"><code>
&gt;
</code></a></p>
<p>jsxref 2: <a title="The documentation about this has not yet been written; please consider contributing!" class="new" href="/en-US/docs/Web/JavaScript/Reference/Ops#Less">
&amp;gt;
</a></p>

I think the first version, that just used <%- str %>, might actually be right for both cases.

[jwhitlock]

Manually merged the first commit to master.