Use IO#gets instead of Kernel#gets
Merge remote-tracking branch 'pr/287/head'
Bump up version
include tcp6 & udp6 as port protocol

apache2 in debian is listed as tcp6 in netstat so grep for 'tcp' won't
work.
Merge pull request #288 from JHaals/tcp6udp6

include tcp6 & udp6 as port protocol
Bump up version
Allow to use '_' and '-' as vagrant machine name
Merge pull request #290 from darklore/vagrant-name

Allow to use '_' and '-' as vagrant machine name
Bump up version