unittests test-agent add chai expect and should interface

Some unit tests use assert.include for testing existing methods in created objects.

 chai.js:1609 
/**
   * # .include(value, includes, [message])
   *
   * Assert the inclusion of an object in another. Works
   * for strings and arrays.
   *
   *      assert.include('foobar', 'bar', 'foobar contains string `var`);
   *      assert.include([ 1, 2, 3], 3, 'array contains value);
   assert.include = function (exp, inc, msg) {
    var obj = new Assertion(exp, msg);

    if (Array.isArray(exp)) {
      obj.to.include(inc);
    } else if ('string' === typeof exp) {
      obj.to.contain.string(inc);
    }
  };
for object this method do nothing!!

For example - changed apps/clock/test/unit/picker/picker_test.js
assert.include(Picker.prototype, 'reset');
assert.include(Picker.prototype, 'reset1'); - assert OK!!!