Minor fix detail layout.
Remove tabs in wall page.
Click gallery blank part will not open gallery now.
Remove tabs in area page.
Fix spin issue for wall and area pages.
Hide compoments if no data in it.
Combin edit wall info to one page.
Refactor image.js
Unified edit area in one page.
Fix edit button on area page.
Remove unused files.
Minor fix.
Update TODO.
Fix image related issues after refactor.
Remove unused files.
Refactor image remove.
Refactor image add.
Adopt new image add compoment.