remove garbage.
refactoring CommandLogInterceptor.
- remove the dependence to Runner.
- remove the dependence to receiver class.
refactoring HighlightInterceptor.
- remove the dependence to Runner.
- remove the dependence to receiver class.
refactoring ScreenshotInterceptor.
- remove the dependence to Runner.
- remove the dependence to receiver class.
fix issue #102.
update dependency version.