Merge branch 'dev'
* pia-status is now using a .txt file to cache results
* pia-daemon will refresh the cache every 30 minutes
* removed extra IP info from console output
* pia-daemon, pia-start, pia-stop will now clear the status cache when started
* very basic quick start ReadMe added
* removed left over debug notice
* this needs to be disabled!
* file may not exist
* ping_host() now supports "any" to send pings over VPN first then Internet
* ping_host() now supports "quick" to send only one ping to the host instead of the standard 4 second check
* pia-start is using ping_host "quick" and is much faster now
* fixed issue with pia-start not displaying anything without status.txt