make RBRefstring a boxed gtype.

2007-03-13  James Livingston  <doclivingston@gmail.com>

        * rhythmdb/rb-refstring.c: (rb_refstring_get_type):
        * rhythmdb/rb-refstring.h: make RBRefstring a boxed gtype.

        * rhythmdb/rhythmdb.h:
        * rhythmdb/rhythmdb.c: (rhythmdb_class_init),
        (rhythmdb_set_property), (rhythmdb_prop_type_get_type),
        (rhythmdb_entry_keyword_add), (rhythmdb_entry_keyword_remove),
        (rhythmdb_entry_keyword_has), (rhythmdb_entry_keywords_get): add new
        API for Keywords.

        * rhythmdb/rhythmdb-tree.c: (rhythmdb_tree_class_init),
        (rhythmdb_tree_init), (rhythmdb_tree_finalize),
        (rhythmdb_tree_parser_start_element),
        (rhythmdb_tree_parser_end_element),
        (rhythmdb_tree_parser_characters), (save_entry),
        (rhythmdb_tree_entry_delete), (remove_one_song),
        (evaluate_conjunctive_subquery), (remove_entry_from_keyword_table),
        (rhythmdb_tree_entry_keyword_add),
        (rhythmdb_tree_entry_keyword_remove),
        (rhythmdb_tree_entry_keyword_has), (remove_entry_from_keywords),
        (check_entry_existance), (rhythmdb_tree_entry_keywords_get): make
        RhythmDBTree implement the above API.

        * bindings/python/rb.defs:
        * bindings/python/rhythmdb.defs: bind it to python.

        * tests/test-rhythmdb.c: (count_and_free_refstring_list),
        (START_TEST), (rhythmdb_suite): add some unit tests.

        From #324540

svn path=/trunk/; revision=4938