bootstrap: update bootstrap.d to latest version of generated dunnart.d

Signed-off-by: Peter Williams <pwil3058@gmail.com>
bootstrap: make sure copyright message appears at the front of the file

Signed-off-by: Peter Williams <pwil3058@gmail.com>
specification: make productionList an ordinary list

Signed-off-by: Peter Williams <pwil3058@gmail.com>
production: simplify the construction of Production instances

Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
grammar items: make GrammarItemSet look like a class

Signed-off-by: Peter Williams <pwil3058@gmail.com>