liborigin 2.0.0

### - b -

- begin() : tree< T, tree_node_allocator >, tree< T, tree_node_allocator >::iterator_base
- begin_breadth_first() : tree< T, tree_node_allocator >
- begin_fixed() : tree< T, tree_node_allocator >
- begin_leaf() : tree< T, tree_node_allocator >
- begin_post() : tree< T, tree_node_allocator >
- Bitmap() : Origin::Bitmap
- breadth_first_queued_iterator() : tree< T, tree_node_allocator >::breadth_first_queued_iterator