Add support for lxc(Linux Container)
Merge pull request #285 from tenforward/lxcSupport

Add support for lxc(Linux Container)
Bump up version
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