F007 Add first new Task: broken

[thomaswoehlke]

• An error happened during template parsing (template: "class path resource [templates/task/add.html]"
• (template: "task/add" - line 23, col 24)
• Invalid property 'userAccount' of bean class [org.woehlke.simpleworklist.task.Task]: Bean property 'userAccount' is not readable or has an invalid getter method