webminstats 2.22 (stable) released

Webminstats is a Webmin's module which display a graphical log of historic information. It's modular in design, as to be able to log everything from CPU usage to mail queue
in this release :
* (ping) add alerts if ping fail
* (hddtemp) allow modify device to add prefix
* add init_all button in config.cgi
* add lib directory
* rename all config sample from config.txt to config.sample
* add webmin version in index footer
* add new module audit
* add new module battery