v21.08.00

🐛 Bug Fixes

• Fix usage of assert_columns* APIs. (#433) @vyasr
• Switch to using public cudf testing utilities (#431) @vyasr
• Update CMake, fix testing use of assert_eq, and correct metadata copying (#430) @vyasr
• Improve Hausdorff perf and accept larger number of inputs. (#424) @cwharris
• Fix a critical issue with parallel_search functor. (#405) @thomcom

🛠️ Improvements

• Updating Clang Version to 11.0.0 (#426) @codereport
• Update sphinx config (#421) @ajschmidt8
• Bump isort, enable Cython package resorting (#419) @charlesbluca
• Fix 21.08 forward-merge conflicts (#418) @ajschmidt8
• Correct the docs example for cuspatial.CubicSpline (#411) @thomcom
• Update version to 21.08.00 in cmakelists (#410) @harrism
• Fix merge conflicts (#408) @ajschmidt8
• Support spaces in build.sh paths (#385) @jolorunyomi