Implement `weechat-awareness-reload'.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Add 'q' keybinding.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Add window splitting.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>