feat(Links): Adds link styles
feat(Header): Adds header markup and styles
feat(Banner): Adds banner styles
feat(CDN): Adds CDN static URL to Assemble config and templates
chore(Package): Updates devDependencies
fix(Gruntfile): Fixes local assets URL
feat(Icons): Adds icon set, Grunt task and implements icon for external links
fix(Gruntfile): Adds semi colon
fix(Adds fonts task to build_dev
Merge branch 'master' into blog