v4.7.5.13.5

Fixing issue with None value handling in JSON

v4.7.5.13.4

Fixed issue with blank node list

v4.7.5.13.3

Ajusting join typing verification

v4.7.5.13.2

Adding parent and child map to join execution for RML-Views

v4.7.5.13.1

Fixed issue with self-joins in RMLViews

v4.7.5.13

Updating joins to considere RMLView as a parent source

v4.7.5.12.13

Catching None exeption in funcions

v4.7.5.12.12

Fixed issue with joins

v4.7.5.12.11

Fix datetime function

v4.7.5.12.9

Fixed issue with FNML function