Adding support for `option` selected state checking.
Making `wait` method of Driver/Session return condition at method exit.
Merge pull request #11 from aik099/driver-is-selected-feat

Adding support for `option` selected state checking via new `isSelected` method of a driver
Merge pull request #13 from aik099/driver-wait-return-value

Making `wait` method of Driver/Session return condition at method exit.