Update Pybind11

• Update the bundled pybind11 to version 2.7.1
• Fix conda-forge build on macos

New features for ground-based observations

• Add support for generating observation matrices (#374).
• Allow the user to set fixed weather simulation parameters (#379).
• Optimizations in the ground telescope simulation code (#386).
• Support gain template fitting in the map making (#381).
• Fixes to scheduling observations of solar system objects (#408).
• Add support for simulating detector cross talk (#380).
• Add support for common mode filtering (#429).

Release candidate for 2.3.13

Testing new deployment to PyPI.

Small fixes discovered post 2.3.11

Fixes several typos.

Restore support for MKL

This re-enables support for directly calling MKL DFFT routines. A CMake check is added for MKL and if it is found, then MKL is used for both BLAS/LAPACK and FFTs. The MKL threading layer (GNU or Intel) is set at runtime based on the compiler used during build.

• Restore support for directly using Intel MKL for FFTs (PR #371, #372).
• Fixed bug in wind velocity during atmosphere simulations.

Small release to fix a bug

This fixes a bug found in the 2.3.9 release. Serial unit tests now explicitly disable MPI, so hopefully we will catch these in the future.

Benchmark and Simulation Updates

• Add stand-alone benchmarking tool (PR [#365]).
• Update wheels to use latest OpenBLAS and SuiteSparse (PR #368).
• Tweaks to atmosphere simulation based on calibration campaign (PR #367).
• Add support for 2D polynomial filtering across focalplane (PR #366).
• Ground scheduler support for elevation modulated scans (PR #364).
• Add better dictionary interface to Cache class (PR #363).
• Support simulating basic non-ideal HWP response (PR #362).
• Ground scheduler support for fixed elevations and partial scans (PR #361).
• Additional check for NULL plan returned from FFTW (PR #360).

Build Infrastructure Fixes

This is a minor release that:

• Updates the bundled pybind11 to version 2.5.0
• Changes pip wheels to be based on manylinux2010 (instead of 2014), to allow glibc compatibility with CentOS 6
• Fixes compile error on very new clang used by conda-forge on MacOS

Also minor documentation updates about installation with pip.

Work on Usability, Benchmarking, and Deployment

Many improvements in the last few months:

• Documentation updates and deployment of pip wheels on tags (PR #356).
• Cleanups of conviqt polarization support (PR #347).
• Support elevation nods in ground simulations (PR #355).
• Fix a bug in parallel writing of Healpix FITS files (PR #354).
• Remove dependence on MPI compilers. Only mpi4py is needed (PR #350).
• Use the native mapmaker by default in the example pipelines (PR #352).
• Updates to build system for pip wheel compatibility (PR #348, #351).
• Switch to github actions instead of travis for continuous integration (PR #349).
• Updates to many parts of the simulation and filtering operators (PR #341).
• In the default Healpix pointing matrix, support None for HWP angle (PR #345).
• Add support for HWP in conviqt beam convolution (PR #343).
• Reimplementation of example jobs used for benchmarks (PR #332).
• Apply atmosphere scaling in temperature, not intensity (PR #328).
• Minor bugfix in binner when running in debug mode (PR #325).
• Add optional boresight offset to the scheduler (PR #329).
• Implement helper tools for parsing mapmaker options (PR #321).

Documentation Overhaul

• Overhaul documentation (PR #320).
• Small typo fix for conviqt operator (PR #319 ).
• Support high-cadence ground scan strategies (PR #316).
• Fix BLAS / LAPACK name mangling detection (PR #315).
• Allow disabling sky sim in example pipeline (PR #313).