drop databases
Merge branch 'master' of https://github.com/matus85/lms299

Conflicts:
	databases/c8b669d15150d7109e5f7ab36744a5b7_course.table
	databases/c8b669d15150d7109e5f7ab36744a5b7_course_section.table
	databases/c8b669d15150d7109e5f7ab36744a5b7_membership.table
"fixed errors in db1.py and dbcal.py"
Merge branch 'master' of https://github.com/matus85/lms299

Conflicts:
	models/db1.py
	models/dbcal.py
Resolve conflicts in db1.py and dbcal.py
Merge branch 'master' of https://github.com/matus85/lms299
Merge branch 'master' of https://github.com/matus85/lms299
ignore idea files.
Merge branch 'master' of https://github.com/matus85/lms299

Conflicts:
	models/dbcal.py
restore missing handsontable.full.css and handsontable.full.js
Display Points for HWs on Teacher Grading view.
Add section_statistics table.
Update section_statistics table.
Minor changes on teacher grading page.
Save statistics options for courses(view part done!)
Minor changes.
Save stat options for courses.
Merge branch 'master' of https://github.com/matus85/lms299
Retrieve stat options(teacher grading view)
Change font color of stat data when turn on of off stat options.