Added new collapseWhitespace test ...
Added new collapseWhitespace test ...

Failing currently.

kangax/html-minifier,psychoss/html-minifier,DChristiany/html-minifier,kangax/html-minifier,bryanerayner/html-minifier,MacManus/html-minifier,DChristiany/html-minifier,kangax/html-lint,GerHobbelt/html-minifier,GerHobbelt/html-minifier,MacManus/html-minifier,psychoss/html-minifier,AshKyd/html-minifier,jonnochoo/html-minifier,jonnochoo/html-minifier,kangax/html-lint,AshKyd/html-minifier,HossainKhademian/HtmlMinifier,bryanerayner/html-minifier