Case sensitivity in vagrant

[emarsman]

Windows/MacOS is case insesitive. When using shared folders like we do in vagrant, the ubuntu box inherits that. This is not correct behavior for native linux box. See this commit. Before fix, compiled fine on windows w/ vagrant, but failed on travis-ci running native.

A couple possible solutions to improve cross platform. Try rsync or NFS isntead of shared folders? Raise an issue with vagrant? Some details:

http://stackoverflow.com/questions/26483867/how-to-handle-files-in-case-sensitive-way-in-vagrant-on-windows-host

https://enrise.com/2012/12/git-and-vagrant-in-a-windows-environment/#comment-2663

http://stackoverflow.com/questions/21562913/virtualbox-vagrant-shared-folder-case-sensitivity-issue-on-os-x-and-linux

http://serverfault.com/questions/550888/vagrant-synced-folders-arent-case-sensitive

hashicorp/vagrant#6809