Abort if steamcmd_user is root

Add broadcast command override

Improve readme formatting

Pass exit status when run as root

Fix broken server up detection

Use steamcmdhome for workshop, log, appinfo cache

Add --stopped and --online to wait command

Disable allexport

Fix error with serverbasedir

Merge pull request arkmanager#1003 from BoiseComputer/patch-1

Patch 1