v0.1.1

Changed

• Reading a directory as a file (read_bytes(), read_text(), a read of
  open("rb")) raises IsADirectoryError (EISDIR, with the remote path as
  filename) against servers that open a directory for reading, as OpenSSH
  does, on both backends. Against OpenSSH for Windows an unsized read returned
  b"" ("" in text mode); against OpenSSH on Linux, and for a sized read on
  Windows, it raised an OSError("Failure") with no errno. open() itself
  still succeeds on those servers. Code that caught the bare OSError still
  catches it; code that read a directory and got empty content now gets the
  error.

Full Changelog: v0.1.0...v0.1.1