Merge pull request #45 from adobe/header-refactor

examples/docs/complex.schema.md

examples/docs/deepextending.schema.md

examples/docs/extending.schema.md

lib/header.js

lib/markdownWriter.js

package.json

spec/examples/complex.schema.md

spec/examples/deepextending.schema.md

spec/examples/extending.schema.md

spec/lib/header.spec.js

spec/lib/integrationTest.spec.js

templates/md/header.ejs