v1.3.0

• Singles snippet title field now auto-populates.
• Made redirects regex support clearer (even I forgot).
• Field no longer throws "One SEO field only" error when using quick-edit modal thingies.
• Moved plugin files into SEO/ directory, moved superfluous files out of plugin directory.
• Added fix for #26
• Added fix for #21
• Added @PetterRuud's fix for #20