* Specify accept-charset on all forms. All recent browsers,
as well as IE5+, will use the encoding specified for form
parameters
* Unfortunately, IE5+ will not look at accept-charset unless
at least one character in the form's values is not in the
page's charset. Since the user can override the default
charset (which Rails sets to UTF-8), we provide a hidden
input containing a unicode character, forcing IE to look
at the accept-charset.
* Now that the vast majority of web input is UTF-8, we set
the inbound parameters to UTF-8. This will eliminate many
cases of incompatible encodings between ASCII-8BIT and
UTF-8.
* You can safely ignore params[:_snowman_]
TODO:
* Validate inbound text to confirm it is UTF-8
* Combine the whole_form implementations in form_helper_test
and form_tag_helper_test