Add @since to most JSDoc comments

- See jasmine/jasmine.github.io#117

src/core/matchers/toEqual.js

@@ -3,6 +3,7 @@ getJasmineRequireObj().toEqual = function(j$) {
    * {@link expect} the actual value to be equal to the expected, using deep equality comparison.
    * @function
    * @name matchers#toEqual
+   * @since 1.3.0
    * @param {Object} expected - Expected value
    * @example
    * expect(bigObject).toEqual({"foo": ['bar', 'baz']});