Revert "Revert "added tests for p6 polls""

This reverts commit 70bd55504e867cc58d17894acb48aaa15f006f9f.
Revert "Revert "added tests for p6 polls results and implementation""

This reverts commit c6169403602ee50ad5c6eca1ea38dd700ca7e308.
Adding feedback to smc for head teacher attendance
Removing inline javascript from admin dashboard
Fixing 500 error on edtarc/national-stats
refactoring is_holiday() function
absenteeism on dashboard bug: absenteeism for this and previous week head teacher
refactoring test
test for national-stats login required
adding alerts for partial responses
Merge commit '3c68682'

Conflicts:
	education/attendance_diff.py
	education/models.py
	education/test/test_successful_feedback_for_p6_polls.py
	education/test/test_successful_feedbacks_to_polls.py