fix single newline in markdown input

Merge pull request googlecodelabs#238 from shawnbuso/fb2

Add id to feedback element.

Merge pull request googlecodelabs#234 from googlecodelabs/remove-about

Removed about section for now.

Remove potential line breaks from getting into codelab IDs and titles.

Merge pull request googlecodelabs#229 from googlecodelabs/template-ch…

…anges

Template changes

Merge pull request googlecodelabs#225 from googlecodelabs/badge-id

Allow passing a "Badge ID" in codelabs metadata which will be passed …

Merge pull request googlecodelabs#187 from googlecodelabs/build-fixes

Slight build changes to allow SCSS imports into devsite

Merge pull request googlecodelabs#184 from googlecodelabs/marcacohen-…

…patch-1

point to internal version of formatting guide

Merge pull request googlecodelabs#182 from shawnbuso/elements

Remove support for polymer components. bin/claat now supports custom …

Merge pull request googlecodelabs#171 from shawnbuso/elements

Codelabs.json format for htmlElements exports will now be "html" inst…