- pyobjc doesn't ship wheels for 3.8 anyway

- previously they would never interrupt CI, even with a failure

- also fixes local env detection in cli when run from repo

- allows the test suite to run in CI

- it was using map() which started being lazy in python3 and was failing to invoke the callback

- comparing to a tuple was always a non-match

- add missing dunder methods and drop otiose ones from MagicNumber (the base class for Dimension & Unit)
- add unit tests exercising numeric comparison ops
- fixes #67

- previously the vector would be rasterized at the width/height of the PDF or SVG, then that bitmap mask would be scaled
- now the vector image is scaled to the size it will occupy on the canvas *before* being rasterized, so the masking is still pixel-based, but will no longer be super-low res
- partially addresses #83 (though it doesn't provide the vector-based mask the user exptected)

- initial migration uses some runloop trickery in the EditorView.source getter to stay compatible with the synchronous file-saving api
- web inspector is now only enabled by default on dev builds (though it can be added to dist builds with a defaults write to `WebKitDeveloperExtras`)

- removed the need for the runloop trickery by keeping a cached copy of the document in _last_source (updated via the undo-manager callback)

- support for quads was added in macOS 14, deprecating the now-ambiguously named `NSBezierPathElementCurveTo`

- this changes the previous keybinding for adding a new insertion point: it now uses command-opt-click

- when, say, `fill` is used as a kwarg, it won't let you click it (since that would take you to the docs for `fill()` instead)

ace's default command-exec handler replaces falsy args (including a
legitimately empty source, e.g. a brand-new blank document) with {}
before invoking the command, which the refreshdoc command forwarded
straight into session.setValue() -- crashing $detectNewLine since {}
is truthy and has no .match(). Guard against non-string args instead.