* Force each plugin that extends base-components to implement a static method `NAME()`
* Remove redundant `NAME` argument from 'Utils.defineJQueryPlugin' & fix test
Moves more functionality to `base-component`, transferring the responsibility of disposal to parent class.
Each component, dusting disposal, sets its protected properties to `null`. So the same can be done in one place for all children components .
After some research, I found out that EventHandler saves all the custom events per element using namespace, and is capable of removing handlers using only the element and its namespace (`DATA_KEY`).
So, probably is better to utilize the base-component to do the same job.
