EDIT

ref #5458 Add named areas selection box

ref #5458 Extract duplicate code

ref #5458 Escape SQL control character '

ref #5458 add white space to SQL query

ref #5458 Fix and streamline SQL distribution query

ref #5458 Revert SQL streamlining

ref #5458 streamlined SQL query

ref #5458 Cleanup and stability for distribution editor

• Extract string constants for DB columns
• renaming methods and variables
• fix session handling for CRUD operations on NamedAreas

ref #5458 Fix grouping and add ordering of taxon node table

Refactor SQL query to work on a list of taxon nodes #5458