Merge pull request #132 from OpenTechFund/feature/183-add-activities-to-submissions

...pply/activity/templates/activity/include/action_list.html

...ctivity/templates/activity/include/all_activity_list.html

...ply/activity/templates/activity/include/comment_list.html

...ply/activity/templates/activity/include/listing_base.html

opentech/apply/activity/views.py

opentech/apply/funds/forms.py

.../funds/migrations/0026_add_leads_to_submission_and_lab.py

opentech/apply/funds/models.py

...y/funds/templates/funds/applicationsubmission_detail.html

...pply/funds/templates/funds/includes/update_lead_form.html

opentech/apply/funds/templates/funds/submissions.html

opentech/apply/funds/views.py