modified module_alsa to module_vol

+ Modified the module name
+ Added PulseAudio volume (need to notify the user to un-comment one of these 2 lines, depending on what he uses)

modules.sh

@@ -22,8 +22,12 @@ module_user() {
 	export bar="${bar}${1}$(whoami)@$(cat /proc/sys/kernel/hostname)${2}"
 }
 
-module_alsa() {
-	export bar="${bar}${1}$(amixer sget Master | awk -F'[][]' '/Mono:/ { print $2 }')${2}"
+module_vol() {
+	# Un-comment this if you use ALSA
+	#export bar="${bar}${1}$(amixer sget Master | awk -F'[][]' '/Mono:/ { print $2 }')${2}"
+
+	# Un-comment this if you use PulseAudio
+	#export bar="${bar}${1}$(pamixer --get-volume)${2}"
 }
 
 module_kernel() {