I noticed lxc-console uses '^a' as command-mode prefix to
escape out of console session, so created a patch to make it
configurable. With this, you can do

  lxc-console -n foo -e ^t

and exit the session with 'Ctrl+t q'.

For emacs-binding addicts (like me), it's always nice to
let shell handle '^a' as 'beginning-of-line' command...
Signed-off-by: Taisuke Yamada <tai@rakugaki.org>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>