visual fix for filters
Make pretty filters actually work
basic zero state
Zero state for tree views
Merge pull request #1770 from reciprocity/feature/filter-fixes-s37

My Task filter fixes
Merge branch 'release/0.9a37' into feature/list-zero-state-s37

Conflicts:
	src/ggrc/assets/stylesheets/_widget.scss
Merge pull request #1771 from reciprocity/feature/list-zero-state-s37

Zero state for tree lists
Skip '*_alembic_version' tables when generating migrations
Bump alembic version for index-inspection fixes
Make model declarations and migrations match existing schema
Make model declarations and migrations match existing schema
Make model declarations and migrations match existing schema
Make model declarations and migrations match existing schema
Merge pull request #1780 from reciprocity/feature/reestablish_baseline_for_migrations

Reestablish baseline for migrations (for 37.x)
Add some indexes to optimize queries
object_folder index added, and updated_at indexes for all base-derived models.
This fixes issue found in task due and overdue that is different in handling individual task change.
Merge pull request #1783 from reciprocity/hotfix/email_task_due_fix

Fix for task due and overdue notification rule
Merge pull request #1782 from reciprocity/feature/add-more-indexes

Add previously missing indexes to speed up deletion.
Merge branch 'release/0.9a37' into feature/task-group-no-cascade