include dashboard_objs in distribution

Author: chriddyp

Diff for: setup.py

@@ -34,6 +34,7 @@ def readme():
                 'plotly/api',
                 'plotly/api/v1',
                 'plotly/api/v2',
+                'plotly/dashboard_objs',
                 'plotly/plotly',
                 'plotly/plotly/chunked_requests',
                 'plotly/figure_factory',