Various changes from git version and make autoplayer determine video type on lowercase url
/** @constructor */
function Circle(){}
/**
@constructor
@memberOf Circle#
*/
Circle.prototype.Tangent = function(){};
// renaming Circle#Tangent to Circle#Circle#Tangent
/**
@memberOf Circle#Tangent#
*/
Circle.prototype.Tangent.prototype.getDiameter = function(){};