trying some new stuff, tmux/fonts xft
new powerline configs
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.tmux.conf
Merge remote-tracking branch 'upstream/master'
modification tmux, irssi and so on
few modification, powerline-fonts submodule preparing
submodule added
few mod
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.tmux.conf