Added levels settings to the battery module (#654)
Added levels settings to the battery module (#654)

* Added levels settings to the battery module

Specify text for custom levels of the battery charge

* Round up charge the same way it is displayed

percentage value used to determine text from levels setting should be
round up the same way as when it is displayed on the screen

Arvedui/i3pystatus,drwahl/i3pystatus,teto/i3pystatus,facetoe/i3pystatus,fmarchenko/i3pystatus,teto/i3pystatus,drwahl/i3pystatus,fmarchenko/i3pystatus,enkore/i3pystatus,Arvedui/i3pystatus,facetoe/i3pystatus,enkore/i3pystatus