Uproot

Fixed a memory leak in `iterate`: 187.

Fixed a silent error that skipped unrecognized local file names (because, as trivial glob patterns, they don't match); only skipping unmatching names if they actually contain glob characters (`*`, `?`, `[`, `]`, `{`, `}`): 184.

Fixed a bug in TStreamerLoop code generation: 186.

Allow allocators in `std::vector` typenames: 185.

Pass through HTTP(S) query parameters if they exist: 183.

Fixed `uproot4.lazy` error message for the case of no matching files.

Fixed reading of empty files.

Brought up to date with awkward1 0.4.2 (which dropped `cache` parameter from `ak.Array` constructor).

Updated README to indicate that this is the supported version, and point to documentation.

* Implemented TProfile2D's values (111).
* Fixed a bug when reading into Pandas (112).
* henryiii cleaned up CI (113).
* Fixed `arrays`/`iterate`/`concatenate` expressions (116).
* Recognizing full paths of branch names in `arrays`/`iterate`/`concatenate` expressions (117).
* Fix name fetch again (118).
* Variety of fixes for ATLAS xAOD (124).
* andrzejnovak sorted suggested keys in KeyInFileError (127).
* Added tests for Python 3.9 (132).
* TrivialExecutor needs to return a TrivialFuture (accidentally pushed to master).

Removed a rouge `print` statement (and added flake8-print to catch such errors in CI in the future).

alexander-held removed debugging print statement. (Thanks!)

Try again to trigger deployment.