[mythtv] Language setting in mythweb

[Torbjörn Jansson]

For some reason the language setting in mythweb doesn't seem to stick.
Everytime i click on the configure mythweb link the language is reset to
english and Australian is displayed in the language combo box.

The other settings like date seems to be saved fine, i changed the hour
format to %H:%M and that's still the same.

(i manualy deleted the entries in the mythweb_sessions table just to make
sure it realy was saved)