add overlay to prefix-fill messages

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
Merge remote-tracking branch 'refs/remotes/ruediger/master'

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
update readme

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
fix some errors occuring when something is nil

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
update todo.org

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
add Rüdiger to Contributors

Signed-off-by: Moritz Ulrich <ulrich.moritz@googlemail.com>
Header line support.

Signed-off-by: Rüdiger Sonderfeld <ruediger@c-plusplus.de>
Merge branch 'master' of git://github.com/the-kenny/weechat.el