Add optional wrapping div around SwatFormField notes and contents.

This is controlled by a new $wrap_content_and_notes flag, and leads to a giant nested if block, but the logic is easiest to follow like this, and probably easier than the prior logic.
CS
Fix the title display on SwatFormField for one of the new cases.

Title should always be first when $title_reversed is false.
Merge pull request #33 from isaacgrant/swat-form-field-rip-wrap-wrappity-do

Add optional wrapping div around SwatFormField notes and contents.