[Mediawiki-api] BREAKING CHANGE to action=paraminfo

[Roan Kattouw]

action=paraminfo's return format has changed (r30151). Rather than:
<modules>
    <help class="ApiHelp" />
etc.

it now returns:
<modules>
    <module name="help" class="ApiHelp" />
etc.

With the old format, invalid XML would be generated if the module name 
contained certain characters.

Roan Kattouw (Catrope)