added iconsets, regex to find out what the social domain name is and URL module support
Fixed typo in hook_field_formatter_settings_form() that prevented the formatter option form to be shown.
Changed pic by icon
Added small icons

All the icons are from
http://www.elegantthemes.com/blog/resources/free-social-media-icon-set
Merge pull request #2 from LondonITGuys/7.x-1.x

Merged pull request - adding icons and fixed regex.