Merge branch 'gh-pages'
Fixes #14. Nested router breaks DefaultRouter index page
Added update_bulk_dict to pre_save_bulk and post_save_bulk methods
Merge pull request #18 from alexander-akhmetov/pre_save_bulk

Added update_bulk_dict to pre_save_bulk and post_save_bulk methods
Version 0.2.4
Merge branch 'master' into gh-pages