v0.4.0

• Improved — Optimized new instance creation methods to be faster.
• New — Added classMethod helper for creating "class-level" methods.
• New — Added classHelper method for creating new chainable methods. Useful for plugins.
• New — Added attrInit helper for listening to attribute creation on new instances. Useful for plugins.
• Changed — Global plugin management has moved to registerPlugin(), unregisterPlugin(), and plugins().
• Changed — Global plugins are now referenced by name through use(), instead of being automatically added to every Keylime class.