Adding upstream version 1.6.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

.gitignore

@@ -0,0 +1,41 @@
+*.py[cod]
+.idea
+env/*
+.python-version
+
+# C extensions
+*.so
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+lib
+lib64
+__pycache__
+\.vscode/*
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.tox
+nosetests.xml
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+*.swp