Enhanced lists plugin implementation

[abetis]

The plugin implement:

• Drop-down menus to select bullets and numbered lists types
• Allow configuring the options shown in the drop down lists based on the standard:
  https://developer.mozilla.org/en-US/docs/Web/CSS/list-style-type
• Both lists types use the HTML5 styling version, although OL can still use the type attribute, the styling version allows more options (I personally need the additional numbering option that will be used with custom configuration

[brunoais]

Please do not link to w3schools. Those guys are too money hungry compared to the actual help they provide. w3s don't care about standards until it hurts their income. They also don't participate in the standards definitions and don't care to link to the official documentation at w3's website.
Link to MDN or w3c instead.

[abetis]

I don't care. Both provide free information on the web. w3 looks more simple to understand.

[brunoais]

Because you don't care, I updated for you.

[brunoais]

What prevents you from making an algorithm that works on all browsers?

[abetis]

I follow the original list commands implementation:

	// START_COMMAND: Bullet List
	bulletlist: {
		exec: function () {
			fixFirefoxListBug(this);
			this.execCommand('insertunorderedlist');
		},
		tooltip: 'Bullet list'
	},
	// END_COMMAND
	// START_COMMAND: Ordered List
	orderedlist: {
		exec: function () {
			fixFirefoxListBug(this);
			this.execCommand('insertorderedlist');
		},
		tooltip: 'Numbered list'
	},
	// END_COMMAND

[brunoais]

Fair enough

[abetis]

Added alternative lists logic from #592
Can be configured to use the OL and UL lists format if someone need it.