add "keyDownNative", "keyUpNative", and "keyPressNative" command. (These are new commands on Selenium 2.40 or later)
move loop command processor from TestCaseParser to TestCase because we can use TestCase#addCommand without using TestCaseParser.
add image link in log part of HTML result.
add support external CSS & JS for HTML result.
record screenshot path list.
add screenshot links.