on androïd device, accept language misunderstood
from a connected french android device, messages are English-written whereas they sould be French-written.
HTTP_ACCEPT_LANGUAGE is received like this : fr-FR, en-US
but LL::NG only decrypt 2-letters language tags
So I suggest a little fix on Common/CGI.pm to add a split on '-' token in order to take into account the language-country (ex : fr-FR) tags and extract the first 2-letters language tag