CSV task export show the assignee name in addition to the assignee username

ChangeLog

@@ -15,6 +15,7 @@ Improvements:
 
 * Improve error handling of plugins
 * Use PHP7 function random_bytes() to generate tokens if available
+* CSV task export show the assignee name in addition to the assignee username
 
 Internal code refactoring:
 

app/Model/TaskExport.php

@@ -58,6 +58,7 @@ class TaskExport extends Base
             tasks.date_due,
             creators.username AS creator_username,
             users.username AS assignee_username,
+            users.name AS assignee_name,
             tasks.score,
             tasks.title,
             tasks.date_creation,
@@ -129,7 +130,8 @@ class TaskExport extends Base
             e('Color'),
             e('Due date'),
             e('Creator'),
-            e('Assignee'),
+            e('Assignee Username'),
+            e('Assignee Name'),
             e('Complexity'),
             e('Title'),
             e('Creation date'),