admin - add some css for showLoading

showloading run on body was not taking up the entire height if the
content wasn't taller than the window. added height to body and html to
solve this.
admin orders - move search to top of interface

the search accordian option on the left is now first, which means it'll
be open by default.
admin - ability to have zoovy or any commerce specific content

Some classes which can be applied to content to show/hide them based on
which service is being used.