Publish wheels for 3.8, 3.9, and arm64; remove deprecated 3.5 (#79)

* Switch to multibuild main branch

* Add Python 3.8 and 3.9 builds to CI

* Add more build architectures

* Pass arch flag into multibuild

* Use docker-compatible arch flags

* Switch to use manylinux2014 container for builds

* Specify test image for arm64 builds

* Remove legacy python 3.5 build

* Pinned multibuild to latest version

Author: adversariel

.travis.yml

@@ -4,10 +4,14 @@ os:
 - linux
 - windows
 - osx
+arch:
+- amd64
+- arm64
 env:
 - PY_VER=3.6
 - PY_VER=3.7
-- PY_VER=3.5
+- PY_VER=3.8
+- PY_VER=3.9
 osx_image: xcode8.3
 matrix:
   exclude:

multibuild.sh

@@ -3,8 +3,14 @@ export REPO_DIR=.
 export BUILD_COMMIT=$TRAVIS_COMMIT
 export PLAT=x86_64
 export MB_PYTHON_VERSION=$PY_VER
+export MB_ML_VER=2014
+if [[ $TRAVIS_CPU_ARCH == "arm64" ]]
+then
+  export PLAT=aarch64
+  export DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
+fi
 
-git clone https://github.com/matthew-brett/multibuild && cd multibuild && git checkout 254ad28 && cd ..
+git clone https://github.com/matthew-brett/multibuild && cd multibuild && git checkout 45d97819e7d39dd2264b2c3cd353c26c4e1ebb74 && cd ..
 source multibuild/common_utils.sh
 source multibuild/travis_steps.sh
 before_install