Merge pull request #409 from JamesParrott/Polylines_and_Polygons

v3.0.12. 3D Point coords

Merge pull request #408 v3.0.11 Stricter shapes. PointZ and Multipoin…

…ts round trip.

v3.0.11 Stricter shapes. PointZ and Multipoints round trip.

Merge pull request #407 from JamesParrott/Hypothesis

v3.0.10 Bugfix. Ensure m < ISDATA becomes None on PointM. Add round tri…

v3.0.9 ShpReader, ShpWriter, ShxReader, and ShxWriter.

v3.0.8

Merge pull request #390 from JamesParrott/dbfReader

Separate DbfReader

Merge pull request #389 from JamesParrott/Separate_download_and_tempf…

…ile_creation

Make downloading from Github slightly less annoying.  Refactor common URL and NamedTemporaryFile code.

v3.0.4 Documentation changes only (record fix of pyshp-stubs).