spy named header-current-section changed to spy-current-section, which adds data attr 'data-wh-current-section' to html element
Merge branch 'master' into demo
fixed: addition of data attr 'data-wh-current-section' changed from $.prop to $.attr (angularjs doesn't have it?)
Merge branch 'master' into demo
fixed: set data attr 'data-wh-current-section' to undefined if current section not found
Merge branch 'master' into demo