New book by default

You have to create a new branch, e.g 7.x-1.x, now you are on "master". see Moving from a master to a major version branch

Please add README.txt

Code review by Coder module:

    Line 9: Comment should be read "Implements hook_foo()."

     * Implementation of hook_menu().

    Line 15: Control statements should have one space between the control keyword and opening parenthesis

      foreach($types as $node_type) {