22.0.0
Update variable name, there are now many linuxes (#1070)
Paint it Black by the Rolling Stones (#920)
Rename path_string to path_bytes since that's what it actually does (#1067)
Docs: Fix param type for methods where digest is used (#1078)
Remove some more py27-isms (#1062)
restore a subset of the rand module (#708)
bump for 22.0.0 release (#1079)