Volumes path and Windows

[maxpou]

Problem
it turn out that Windows users have problem with volume on a Windows host.

Solution
Add COMPOSE_CONVERT_WINDOWS_PATHS=1 to the .env file should solve some problem when mounting volume.

See: docker-compose 1.9 release log

Related to #39.

[vscapital]

https://stackoverflow.com/questions/42203488/settings-to-windows-firewall-to-allow-docker-for-windows-to-share-drive/43904051#43904051