Fixed issue #1521240 by MJCO: Added Move from 'Fields' module group to 'Share/Sharing'.
Issue #1303598 by matglas86: Structure of the configuration pages.
Issue #1335510 by mgifford | benjarlett: Fixed Accessibility.
Coder style updates and fixes for test.
Added some examples to the api file.
Changed the the string reference for 16px to the const variable.
Added the 16x16 style that is all default next to the 32x32 style by AddThis.
Update to documentation of markup_options_alter.
Added module_load_include for AddThisJson in AddThis initialization.
Fixed issue #1489120 by matglas86, kenwest: Wrong widget url for https page.
