use getenv function for BEANSTALK_SERVERS
use getenv function for BEANSTALK_SERVERS

$_ENV global has varying support depending on configuration and server
environment -
https://stackoverflow.com/questions/3780866/why-is-my-env-empty

heivin/beanstalk_console,EpocDotFr/beanstalk_console,deardooley/beanstalk_console,Sunnepah/beanstalk_console,deardooley/beanstalk_console,cgvarela/beanstalk_console,ptrofimov/beanstalk_console,ptrofimov/beanstalk_console,heivin/beanstalk_console,pentium10/beanstalk_console,xblue55/beanstalk_console,EpocDotFr/beanstalk_console,xblue55/beanstalk_console,cgvarela/beanstalk_console,nguyen-tien-mulodo/beanstalk_console,Sunnepah/beanstalk_console,pentium10/beanstalk_console,nguyen-tien-mulodo/beanstalk_console,heivin/beanstalk_console,pentium10/beanstalk_console,deardooley/beanstalk_console,cgvarela/beanstalk_console,nguyen-tien-mulodo/beanstalk_console,ptrofimov/beanstalk_console,xblue55/beanstalk_console,Sunnepah/beanstalk_console,EpocDotFr/beanstalk_console