Fix README issues, update .gitignore and update pypi deploy dockerfile

.gitignore

@@ -16,4 +16,5 @@ include/
 ccov.zip
 /test_files/1101503312_mwax_vcs/*.sub
 /test_files/1101503312_vcs/*.dat
-/test_files/1370755832_mwax_vcs_os/*.sub
+/test_files/1370755832_mwax_vcs_os/*.sub
+.python-version

README.md

@@ -35,8 +35,7 @@ mwalib provides the following binaries and implementations with releases startin
 |mwalib-vX.X.X-macosx-x86-64.tar.gz | MacOSX "C"/"C++" compatible library - includes ".h" and "libmwalib.a" and "libmwalib.so" library files. |
 |mwalib-vX.X.X-macosx-python-x86-64.tar.gz | MacOSX compatible Python wheel. |
 
-NOTE: for both MacOSX and Linux, more optimised build are named with a v2 and v3 after the "x86-64". These suffixes denote that the compilation was optimised for the specified [CPU microarchitecture levels](https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels), with "x86-64" being the most compatible with the very oldest CPUs. If you have a CPU which was manufactured after 2008 you are safe with x86-64-v2, and if it is newer than 2015 then you are safe using
-x86-64-v3.
+NOTE: for both Linux, more optimised builds are named with a v2 and v3 after the "x86-64". These suffixes denote that the compilation was optimised for the specified [CPU microarchitecture levels](https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels), with "x86-64" being the most compatible with the very oldest CPUs. If you have a CPU which was manufactured after 2008 you are safe with x86-64-v2, and if it is newer than 2015 then you are safe using x86-64-v3.
 
 ----
 For installation instructions, concepts and usage info, please see the [`mwalib GitHub Wiki`](https://github.com/MWATelescope/mwalib/wiki).

tools/pypi_deploy/Dockerfile

@@ -11,20 +11,14 @@
 # Once at the prompt, build with:
 #     maturin build --release --cargo-extra-args="--features python,cfitsio-static,examples" --strip --manylinux 2014
 #
-# Publish with:
+# Publish to the test pypi repository first, with (where PYPI_TOKEN is a token generated from https://test.pypi.org):
+#     maturin publish --cargo-extra-args="--features python,cfitsio-static,examples" --manylinux 2014 --username __token__ --password PYPI_TOKEN --repository-url https://test.pypi.org/legacy/
 #
+# Publish to the real pypi repository, with (where USERNAME and PASSWORD are valid):
+#     maturin publish --cargo-extra-args="--features python,cfitsio-static,examples" --manylinux 2014 --username USERNAME --password PASSWORD
 #
 FROM konstin2/maturin
 
-WORKDIR /
-ADD https://github.com/Kitware/CMake/releases/download/v3.19.1/cmake-3.19.1.tar.gz .
-RUN tar -xf cmake-3.19.1.tar.gz && \
-    cd cmake-3.19.1 && \
-    ./bootstrap -- -DCMAKE_USE_OPENSSL=OFF && \
-    make -j8 install && \
-    cd .. && \
-    rm -r cmake*
-
 WORKDIR /io
 
 RUN rustup install 1.63 --no-self-update
@@ -33,6 +27,4 @@ RUN rustup default 1.63
 
 RUN rm -rf /io/target
 
-RUN cargo update
-
 ENTRYPOINT ["/bin/bash"]