Add @since to most JSDoc comments

- See jasmine/jasmine.github.io#117

src/core/matchers/toThrowError.js

@@ -6,6 +6,7 @@ getJasmineRequireObj().toThrowError = function(j$) {
    * {@link expect} a function to `throw` an `Error`.
    * @function
    * @name matchers#toThrowError
+   * @since 2.0.0
    * @param {Error} [expected] - `Error` constructor the object that was thrown needs to be an instance of. If not provided, `Error` will be used.
    * @param {RegExp|String} [message] - The message that should be set on the thrown `Error`
    * @example