This reverts commit b39f3b613c861539f9ae6e18f5064979f7ad6365. Requiring 'head' makes it hard to build partial fonts See https://github.com/fonttools/fonttools/pull/854#issuecomment-283177719
This reverts commit b39f3b613c861539f9ae6e18f5064979f7ad6365. Requiring 'head' makes it hard to build partial fonts See https://github.com/fonttools/fonttools/pull/854#issuecomment-283177719