Added docsstrings to everything and fixed handling of lazy arrays for scikit-hep/awkward-1.0428.
0.0.20
Fixed 32, 36, 38 (as a bug, not as a feature), and 85.
0.0.19
Fixed some bugs, dropped the Dask backend, and modified the colon-handling in filenames ([long discussion here](https://github.com/scikit-hep/uproot4/issues/79)). The main thing that came out of that was a more fully descriptive error message.
0.0.18
douglasdavis fixed a bug in which TArrayDs were assumed to be NumPy arrays (with a `reshape` method).
nsmith- ported the Uproot 3 "clusters" function, now named `common_entry_offsets`. He also prompted me to fix my use of units: MB vs MiB.
I revamped the physical layer to match the way it's actually used in the higher-level code. It's about half as many lines as before. (No longer duplicating thread-handling in vector-read and multipart classes; it's all handled by executors now.)
0.0.17
Fixed an HTTP-freeze issue (fallback method wasn't informed that it needs to notify when done) discovered when writing Awkward tutorials.