Put id on phrase instead of as anchor in HTML output

[mojavelinux]

When an ID is assigned to a phrase (span of formatted text), put the the id attribute on the tag that encloses the phrase instead of as an anchor before it.

Example:

[#bond]_007_

Output:

<em id="bond">007</em>

instead of:

<a id="bond"></a><em>007</em>

The proposed output is the more intuitive result.

[mojavelinux]

Open question: Should this change be applied to the DocBook output too?

[mojavelinux]

I'm reluctant to add this to the DocBook output since the following is not supported by the dblatex XSL:

<phrase xml:id="anchor" xreflabel="text">text</phase>

The XSL stylesheet does not output the following as it should:

\label{anchor}\hyperlabel{anchor}%

This is due to a missing call to the label.id template in the phrase template.

Chances are, this feature is going to be more useful for HTML anyway, so we'll just start with the change there.