Release 0.4.0

• New users API
• New routemap API
• New vrrp API
• BGP API: Add support for maximum_paths and maximum_ecmp_paths
• System API: add support for managing the global EOS ip routing setting
• Add Dry Run mode (#42)
  If Node.dry_run is true , Node.config DO NOT execute an eAPI request to device and only print to stdout [rbeapi dry-run commands] and commands.
• Updated RPM/SWIX packaging to handle Puppet All-In-One (AIO) agent paths
  New package names are: rbeapi, rbeapi-puppet3 (formerly pe-puppet),
  and rbeapi-puppet-aio
• Fixed port-channel get_members() issue with EOS 4.15 and above.
• Fixed issue with the eapi.conf wildcard connection
• Fixed issue that would cause a traceback when searching for eapi.conf if
  $HOME was not set