[plotters] patched urls and various user/anonymous issues for plotters

beat/web/plotters/templates/plotters/list.html

beat/web/plotters/templates/plotters/panels/table.html

beat/web/plotters/urls.py

beat/web/plotters/views.py

beat/web/statistics/templates/statistics/panels/status.html

beat/web/ui/templates/ui/activity_stream.html

.../web/ui/templates/ui/contribution_breadcrumb_plotter.html

beat/web/ui/templatetags/ui_tags.py