www: utils: Relax the checks for POST/GET types in set_vars()
www: utils: Relax the checks for POST/GET types in set_vars()

Previously we allowed either GET's with query strings or a POST of
either x-www-form-urlencoded or multipart/form-data.

However, there is no reason why you can't have a query string with a
POST. PHP allows for this, so lets do the same and I have used this in
another application.

Signed-off-by: Andrew Clayton <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@opentechlabs.co.uk>

ac000/receiptomatic