(DynamicStdErrStreamHandler): Fixes for atexit situation
Update README.md
Fix typo
Merge discontinuous_piecewise branch (known good).
Merge branch 'discontinuous_piecewise'
Merge branch 'discontinuous_piecewise'
Merge branch 'discontinuous_piecewise'
FastLinearFunction.__init__: Remove field argument.
Remove use of field parameters from FastPiecewise calls.