Enable tests for Python 3

Use make macros
Disable Go tests

Update to 4.0.2

Remove BR for Python 2 (bug#1807547)

Add fix for newer NodeJS version

Fix crash in Python backend when using empty docstrings

Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild

Add support for Ruby 2.7
Fix code generated for Ruby global variables

Backport upstream fixes for ruby 2.7 (as small as possible for now)

Disable Ruby tests on all archs

Disable Ruby tests on x86_64

Update to 4.0.1
Add Python 3.8 support
Python Sphinx compatibility added for Doxygen comments
Fix some C++17 compatibility problems in Python and Ruby generated

Backport upstream fix for Go tests (BZ#1736731)

Disable Go tests, they fail with Go 1.13-beta

Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild

Updated package description