Patch to fix the Complex Object feature for create and update operation,...

... which produces the wrong XML like this

    <request method="time_entry.create">
       <time_entry>[task_id, 999999][hours, 25]</time_entry>
    </request>

Instead of

    <request method="time_entry.create">
       <time_entry>
         <task_id>999999</task_id>
         <hours>25</hours>
       </time_entry>
    </request>