Adding jasmine matches in helper outside beforeEach (to speedup)

matchers.js

// Hacking Jasmine: adding matchers outside beforeEach to speed up code
jasmine.addMatchers = function(matchers) {
    var parentClass = jasmine.getEnv().matchersClass;
    var matchersClass = function() {
        parentClass.apply(this, arguments);
    };

    jasmine.util.inherit(matchersClass, parentClass);
    jasmine.Matchers.wrapInto_(matchers, matchersClass);
    jasmine.getEnv().matchersClass = matchersClass;
};