use parse_url on server specs, support IPv6 literals
update config with more robust server spec format
Allow list of servers to be set from environment

If BEANSTALK_SERVERS is set in the environment, explode on commas and
add the resultant elements to the list of servers
Also, avoid a PHP undefined variable warning when there are no groups
setup by setting $groups before including templates
mention BEANSTALK_SERVERS env var in README
actually fill in variables that should be set
Merge pull request #60 from thwarted/more-robust-server-specification

More robust server specification
Merge pull request #61 from thwarted/server-list-from-environment

Server list from environment
Merge branch 'master' of github.com:pentium10/beanstalk_console