There are a lot of little fixes to tests here, but the biggest issue was
too much recursion because we kept replacing the helpers over and over
again. I assume Chrome has tail recursion or something to speed this up
but Firefox hated it.
Otherwise, we can't rely on the order of attributes in rendered HTML so
I simplified most of those tests to just look for key strings in the
HTML that are rendered.
In newer Embers jQuery is removed. There is a `find` but it only returns
one element and not a jQuery selector. This patch migrates our code to a
new helper `queryAll` which allows us to remove the global.
This is where they should be as far as ember is concerned. Note this is
a huge commit and we should be really careful everything continues to
work properly.
