Release .zip will not install correctly through Preferences>Install button

[scurest]

The .zip included in the v1.0.0 release won't install correctly through this Install button in Blender

The .zip contains

__init__.py
import_glr.py

but it should contain the io_import_glr folder

io_import_glr/
io_import_glr/__init__.py
io_import_glr/import_glr.py

Here is a correct ZIP: io_import_glr_v1_0_0_correct.zip

This may be the cause of the installation issues in #5 and #6.