Removed 'widget_text' from array of force_ssl filtered objects.

Forcing SSL for all content in the text widget prevents adding links third party sites that do not support SSL. (ie. Partner sites). Furthermore, it's the assumed responsibility of the individual entering HTML into the text widget to ensure site security when referencing to outside sites.
Merge pull request #3776 from crazyscience/patch-1

Removed 'widget_text' from array of force_ssl filtered objects.