Fix build to make it succeed on jdk 1.5. selenium 2.21.0 is the last jre5 version, com.google.kaptcha:kaptcha:2.3 has never existed on maven central, fix the simple syntax errors. I actually don't agree with these changes because it'll just make it more difficult for the users but we can always revert this commit and follow up with T5.3.9 release