Merge Speed up list creations, and change lists to tuples where appropriate.
Tuples [are quite a bit faster than lists](https://stackoverflow.com/a/22140115). If you don't need mutability, a tuple is almost always the better collection to choose. This merge request changes lists to tuples where appropriate, and speeds up some list creations by changing `list()` calls into `[]` literals. It also changes a few function calls to use tuple unpacking, i.e. `func(*tup)`, as opposed to `func(tup[0], tup[1], ...)`. This yields yet another performance improvement, as well as a readability improvement.
This partially addresses issue #239. There are still some remaining instances where opened files are not properly closed, e.g. the `NamedTemporaryFile` in `utils/apparmor/config.py`.
I found a few spelling and grammar errors while working on my other merge requests. I figured it'd be wise to separate these fixes from the code changes.
