Token::DoGroup: Add print function

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Token::Command: Improve print function

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Token::Redirection: Add print function

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Merge pull request #2 from legionus/master

Add print functions