Add eloquent rules.
bind new observer to creating event of BuildingPropertySales.
makeGrabber method add isRoot param

Store root grabber info before child extracting.
building property list completed
daily information grabber completed.
Add base features for Daily information controller.
put filter form to top of table.
Allow multi-row structure in content.
add region view action and view.
add region link
add footer yield
Add all type option
region view partially completed
datepicketer...