gatsby develop broken on case-sensitive filesystems.

[jaen]

For some reason this file here: https://github.com/gatsbyjs/gatsby/blob/master/lib/isomorphic/html.js is compiled into HTML.js in your dist tarball (https://registry.npmjs.org/gatsby/-/gatsby-0.12.5.tgz) which makes the gatsby develop command to break on case-sensitive filesystems.

Would you mind releasing a new version with lowercased filesystem names?

[KyleAMathews]

Well... that's bizarre. I have no idea why this is happening. The build script just runs babel over the lib files to compile them to dist. I release from my mac fwiw. If you have some time to research what's happening I'd really appreciate that. Otherwise I'll get to this in the next few days.

[jbolda]

@KyleAMathews I assume this is fixed? Closing on that assumption.