Uproot

Fixed two bugs (PRs 105, 107) and added a MANIFEST.in.

Added Sphinx/Readthedocs documentation and promoted uproot4.behaviors.TBranch.Report from a namedtuple to a regular class (to make it inspectable by autodoc).

raymondEhlers fixed the interpretation of TH2 and TH3 histograms as NumPy in PR 97. (They were transposed.)

jpivarski added an interface to offload building of _some_ doubly jagged arrays to Awkward. This is the general plan for anything that `CanBeAwkward`, but for now, we just have this foot-in-the-door for one specific type. PR 96. (Only works when used with [awkward1 0.2.37](https://github.com/scikit-hep/awkward-1.0/releases/tag/0.2.37).) **TL;DR** this data type can now be read 80× faster.

jpivarski also added an interface for file-like objects (anything with a `read` and `seek` method).

Added docsstrings to everything and fixed handling of lazy arrays for scikit-hep/awkward-1.0428.

Fixed 32, 36, 38 (as a bug, not as a feature), and 85.

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.