cross_sysroot/cross_gcc: Fix copytree

github-actions: Add support to publish pypi

Add support to import sysroot from cross-toolchain

Fix entrypoint (again)

.travis.yml: Disable 'pypy3.5' for now

Raised the error: "pkg_resources.DistributionNotFound: The 'pysqlite3'
distribution was not found and is required by cross-sysroot" when launching the app

Initial revision

Initial revision