Madeleine Thompson

If anyone cares to see where I'm going with #353, look at my [c1 branch](https://github.com/madeleineth/simple-salesforce/tree/c1). I'm splitting into two PRs to make review easier.

#353 just got merged, so I'll get a PR ready for the rest of the changes from my `c1` branch.

@emskiphoto There are usually two ways to log in to sandboxes: - If you normally log in on `company_name--UAT.my.salesforce.com` interactively, pass `domain="company_name--UAT.my"` to the simple-salesforce `Salesforce` constructor and use your...

This PR has been sitting here for a while, so I rebased onto `master`, re-ran the tests, and fixed a resource-deallocation issue elsewhere in the package. I've been running my...