Deprecated: Non-static method MvcSettingsRegistry::get_settings()

[alvinbunk]

When I move the "examples/hierarchical-documentation" folder over to wp-content/plugins and then enable (or refresh) it in WordPress (4.4.1), I get the error (there are other errors):

( ! ) Deprecated: Non-static method MvcSettingsRegistry::get_settings() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\wordpress\wp-content\plugins\wp-mvc\core\loaders\mvc_admin_loader.php on line 246

This has to do with the file "wp-mvc/core/mvc_settings_registry.php" line 7 and line 16, both functions "get_instance" and "get_settings" need to be declared "static".

[alvinbunk]

There are also static errors shown in the Admin > Settings > Documentation page.
I can provide a fix for all these.