set html lang via php

Signed-off-by: alkaest2002 <p.calanna@gmail.com>
addedd spin.js and holder.js to footer

Signed-off-by: alkaest2002 <p.calanna@gmail.com>
test: css folder & cleanup

Signed-off-by: alkaest2002 <p.calanna@gmail.com>
test js update

Signed-off-by: alkaest2002 <p.calanna@gmail.com>
addedd test page css php loader

Signed-off-by: alkaest2002 <p.calanna@gmail.com>
updated test page js php loader
added backbone view manager
some test app js cleanup