Added support for custom button texts + Added support for deleting markers + reworked the way the "+" and "-" buttons work + Added a "placeholder" marker when clicking "+" to show where in the timeline the marker will be posted

/**
 * @name bar
 * @namespace
 */
 
new function() {
    /**
     * @name bar-foo
     * @function
     * @param {number} x
     */
    function foo(x) {
    }
}