Log Message:
Update i3status to version 2.9

Changelog:

 * meta: i3status is now on GitHub and uses clang-format
 * allow customization of the module separator
 * add "align" and "min_width" options for each module
 * fix CFLAGS and LDFLAGS for DragonFly and FreeBSD
 * add contrib/net-speed, a more light-weight reimplementation of
   contrib/measure-net-speed.bash
 * battery: add hide_seconds option
 * battery: fix for systems without POWER_SUPPLY_VOLTAGE_NOW
 * battery: for %percentage, drop leading 0 for values < 10
 * battery: add NetBSD support
 * battery: use absolute values for (dis)charging rates
 * battery: introduce status_{chr,bat,full}
 * cpu_temperature: fix displaying multiple sensors
 * cpu_temperature: fix NetBSD support
 * cpu_temperature: fix DragonFly support
 * disk: introduce threshold_type and low_threshold
 * disk: add format_not_mounted for unmounted paths
 * ethernet, wireless: support special interface name _first_
 * run_watch: check all matching pid files until first valid one
 * volume: fix wrong color tags with xmobar
 * wireless: support %frequency (2.4 vs. 5 GHz)