Battery widget moved to batat.lua in preparation for a new bat widget.

It's time for a standalone battery widget that reads
/proc/acpi/battery/*/{info,state} alone. However the old battery
widget that uses 'acpitool' will not be deleted, let it serve as an
alternative widget as a convenience. Some might also prefer it over
reading multiple files in /proc

batat.lua

@@ -9,8 +9,8 @@ local table = { insert = table.insert }
 -- }}}
 
 
--- Bat: provides state, charge, and remaining time for all batteries
-module("vicious.bat")
+-- Bat: provides state, charge, and remaining time for all batteries using acpitool
+module("vicious.batat")
 
 
 -- {{{ Battery widget type

init.lua

@@ -40,7 +40,7 @@ require("vicious.cpu")
 require("vicious.thermal")
 require("vicious.load")
 require("vicious.uptime")
-require("vicious.bat")
+require("vicious.batat")
 require("vicious.mem")
 require("vicious.fs")
 require("vicious.dio")