Remove miqLayout, fix exceptions
Remove miqLayout, fix exceptions

Remove JS that created miqLayout, the outer layout
Change exception handling to replace center_div instead of attaching to the layout "a" cell
(transferred from ManageIQ/manageiq@56c7bec69131a3af3d1da42f1bca639eacd1bd28)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic