Update Buildroot to 2019.02.3 (#415)

* Update Buildroot to 2019-02.3

* Fix enter script

* Update ova_defconfig

* Fix network manager

* Remove runc patches

* Use same docker version

* Fix build

* Fix vmtools

* Fix depens

* Fix handling with tempfiles

* Fix permission handling

* Fix cp

* Cleanup

* Fix mounts

buildroot/support/testing/tests/package/sample_python_click.py

@@ -0,0 +1,12 @@
+import click
+
+
+@click.command()
+@click.argument("foo")
+@click.option("--bar", is_flag=True, help="help for bar")
+def main(foo, bar):
+    click.echo("{}, {}".format(foo, bar))
+
+
+if __name__ == '__main__':
+    main()