FYI: Development branch change (using the master branch for unreleased changes)

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I've been using the develop branch for unreleased development changes, with the default master branch being reserved for the latest stable release. But I've recently concluded that this isn't really necessary and it's causing some confusion, resulting in the assumption that the master branch should be the base of all PRs.

To avoid further confusion, I'm going delete the develop branch and place all unreleased changes in the default master branch.

This shouldn't break anything, as those who wish to work with a particular version of Bloom's codebase should be using tags. For example, to work with the codebase at v1.0.0, simply checkout to the v1.0.0 tag: git checkout v1.0.0