this allows me to display accented intl characters also with 'emacs -nw'

Details:

international characters were already displayed correctly within
emacs, but not when running it in console mode. This commit fixes this
issue, on my laptop at least. I did two things:
- modify /etc/conf.d/consolefont (see commit) and
  `rc-update add consolefont boot`
- modify my .emacs

Documentation I used:
http://forums.gentoo.org/viewtopic-t-98715-highlight-emacs+international.html
https://wiki.gentoo.org/wiki/Localization/HOWTO#The_Euro_Symbol_for_the_Console
http://www.emacswiki.org/emacs/InternationalConsoleFonts