javagit/src/main/java/edu/nyu/cs/javagit/client/cli/CliGitAdd.java
public GitAddResponse add(File repositoryPath, List<File> files) throws JavaGitException,
            IOException {
        GitAddOptions options = null;
        return add(repositoryPath, options, files);
    }
public GitAddResponse add(File repositoryPath, List<File> files) throws JavaGitException,
            IOException {
        GitAddOptions options = null;
        return add(repositoryPath, options, files);
    }
Adds a list of files with no GitAddOptions.