inline edit fields layout issues

there are some issues with the inline edit layout fields. if a label runs to two lines, the field row below it may bump to the right of the label because the floats are cleared between each row.

I think we should be wrapping each row in a div with crm-section class, as we do everywhere else. currently the fields are just presented with div-label, div-content, alternating, which is what causes the problem.

see the comm details custom set here for an example:
http://drupal.demo.civicrm.org/civicrm/contact/view?reset=1&cid=102