Python-casacore

This version as a binary wheel ships with underlying casacore v3.2.0.

Changes are only in the underlying casacore.

- Bump version in version.h (since in 3.1.1 it was still at '3.1.0')

General
- Only use DataManager.get/putSlice if possible (901)
- User docker for Linux build on Travis for CI (856)
- improve unicode support (853)
- Changed MadfmFunc so that it inherits from ArrayFunctorBase (905)
- Fix memory leak in TableProxy::getColumnDescription (900)
- Allow colon and fix recursive bison parsing (894)
- ObjectID's hash function behavior fix (897)
- Add a public getter for the mask array to LCRegionFixed (895)
- Replace STL-like containers by their STL counterparts (890)

Python support
- Boost 1.67 Python components require a Python version suffix (844)
- Handle numpy Unicode arrays (912)
- Fix memory leak when converting Python unicode to casa string (910)
- Possible leak bug (908)
- Always use TpInt64 for PyLong (916)
- Improve CMake FindPython (922)

Build system
- Travis macOS fails on Python3 OSX build system (778)
- Switch travis to docker /xenial (847)

General
- Removed many warnings issued by newer compiler versions (798, 809, 819, 820, 866, 883)
- Further improved thread-safety (817, 869, 877, 886)
- Added variance and standard deviation of complex numbers (851)

Tables
- Improved parallel storage manager based on ADIOS2
- Support of Int64 table columns (859)
- Added O_DIRECT support when using MultiFile (885)
- TaQL improvements (813, 851, 867)
- Small CTDS fixes (840, 868)

Measurement Set
- Small improvements (858, 864, 872)
- Better handling of FITS-IDI data bit sampling (836)

Images
- Support for non-chunked HDF5 data sets (879, 880)
- Fixed count overflow on very large images (849)

General
- Building with C++11 is now required
- Improved thread-safety of statics (775)
- Improve statistics code (785, 776, 662, 663)

Tables
- Avoid growing the size of tables when overwriting data (768)
- TaQL support for radial velocity, earth magnetic field and Doppler (750)
- Added performance tests for tables (658)

Measurement Set
- Improvements to MSConcat (779, 701)
- Better handling of FITS-IDI flag history (748)


Images
- Better support for double precision images (752, 751)


Other

- A full list of changes can be found on the [issue tracker](https://github.com/casacore/casacore/milestone/8?closed=1).

General
- This release fixes a bug where TableIterator would skip a row