CRM-12980 fix bug in OnBehalfOf.tpl causing checkbox and radio options n...

...ot be be displayed when options_per_line is set. Indenting cleanup in that tpl as well.

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* CRM-12980: Checkbox and radio button custom fields are not rendered in On Behalf Of profiles if Options Per Line is set
  http://issues.civicrm.org/jira/browse/CRM-12980