Fixed Task public view to always call the update method. Also removed an obsolete value ws_entity that could not be unpacked (therefore causing 505's).

Add task and iterative_task decorator Also add getBatchOfData method to the base logic and tasks logic module. Reviewed-by: Sverre Rabbelier

Fixed GHOP Task Logic's updateEntityProperties. This method now properly calls the supermethod and also uses the right keyword argument (silent instead of siltent).

Fixes the problem of GHOP Task editing after it is created.