Fix notice when user configuration gets loaded to early
Merge pull request #6 from markoheijnen/fix-notice_on_load_admin_screens

Fix notice when user configuration gets loaded to early. Props @markoheijnen
Fix all add_actions that uses the classname and not $this when the method is not static
Remove ending PHP tag
Updated readme file
Merge pull request #7 from markoheijnen/fix-strict-standards

Fix strict standards notices