The old loadSettings.js was a way of customizing settings upon load, because
the Settings module did not offer this functionality. But it did not work well,
since all the default settings were not loaded.
Let's get rid of loadSettings.js for the bulk of the tests (the "backend"
specs). For the "container" specs, we'll keep it in place until/if we rewrite
Settings.js making it less brittle.
Note by muxator:
This commit introduced a copied & modified version of the testing files
loadSettings.js and pad.js.
It's Christmas night, and we want to shipt this feature, so I merged it anyway,
adding a note in both the original and copied files so that hopefully someone
in the distant future is going to merge them back again.
