Switching laptop background
Ctrl+Mod+BackSpace now exits i3
Removed seemingly unneeded part of i3 conky script
Use ACPI and sed to show battery time remaining.

Yes, I know conky has a built-in battery time command.
I don't like it's format.
Moved laptop i3 config to own file

We can do similarly for the desktop setup
and just symlink them to .i3/config