Removed redundant delegate methods by making the methods non-static
Automatically saving config option to the yaml model when it's accessed for the first time
Automatically saving yaml config on component/plugin disable
Automatically resetting config cache on plugin/component disable
Caching the config values so reading is cheaper (it still writes through)
Correctly handling (non-)primitive types in configs
Allowing to set either a primitive or non-primitive default value and the other is obtained from the provided value
#48
