Minor mod to cpu_temperature.sh, music.sh.

tmux/cpu_temperature.sh
	-Remove "CPU:" from segment.

tmux/music.sh
	-`cmus-remote -Q` exit-code was erroneously assumed to remain in
	`$?` between its global-scope assignment and conditional check
	in `cmus_info()`. Change to a declaration of `cmus_info` at the
	global level, and assignment right before said conditional.