[mythtv] MythWeb is broken

[Chris Petersen]

> This code says isMobileUser is true if getScreeSize is false.  That's 
> backwards.  Should be
>  return (getScreenSize() != false);

yeah, I just discovered this after realizing that deleting the session 
files doesn't actually seem to wipe out the cached theme (which mildly 
disturbs me).  (and in your example, it should be !==, not !=)  That's 
what I get for trying to code and pack at the same time.

Anyway, it's committed and fixed, but people will need to do a 
RESET_THEME=yes (see the readme) to fix the session's theme.

-Chris