Update Atwho.js to 0.4.11

Signed-off-by: emanuele <emanuele45@gmail.com>
[At.js] Fix inserts in wizzy mode for some browsers

Signed-off-by: emanuele <emanuele45@gmail.com>
Old Opera are no more relevant (and anyway they work fine :P)

Signed-off-by: emanuele <emanuele45@gmail.com>
This looks superfluous apart for very old browsers we don't care about

Signed-off-by: emanuele <emanuele45@gmail.com>