Merge branch 't9_command'
ticket:4 edit test
Merge branch 't4_template_context_processor'
ticket:5 edit test, view, template
merge conflicts
ticket:6 edit widget, js, view, template
ticket:6 add testing for validation error
Merge branch 't6_ajax_form_and_widget'
ticket:8 make link with reverse in test
Merge branch 't8_template_tag'
ticket:9 edit test