2.1.9

Release notes:

• Fix missing associated attributes if parent is skipped by empty columns.
• Add unique sql key on feed configuration table to prevent duplicate records.
• Do not upload test files on FTP accounts.
• Add directive to output Tier Price.
• Fix currency selector to follow selected store currencies after saving.
• Improved feed URL to work with linked root directory and detect usage of pub folder.
• Exclude products from disabled categories when set with Include products w/o category = No