Handle auth arguments across openstack modules consistently

Fix for #8344

Small doc addition to ec2_group to show the various values for "state"

InventoryDir: fixing yet another corner case

Fixes #8491

Keep docstring up to date with the code in basic module

OH NO NAMING CONFLICT

Fixes #8499

Ensure npm packages actually are installed in a reachable way.

Fixes #8490

Fixes #7875

The previous commit resolved the debian build problem, but was building
packages with the stable version.  A development version is required in
the changelog to properly build development DEB packages.

Remove 1.8 debian/changelog entry with a date of "TBD" as this causes
the debian build process to fail.  We can add this back with the 1.8
release becomes a reality, or add it back now with a valid date in the
future.

This reverts commit bd49a835.

if python >=2.7  use the option allow_no_value=True for ini_file.

Make issue template slightly more verbose.