Add a "simple" layout to playlists for skinning

[jeroen]

A much-requested feature is the ability to add a "simple" playlist layout to the player. In this layout, only the title and duration of a video would be shown. The description/thumbnail would be discarded.

Attached is a screenshot of how this would look.

[jeroen]

Glow skin with both regular and simple playlist layout.

[jeroen]

Committed this in [1279], since we both needed this for BOTR audio support and since it was fairly easy to add.

It works pretty simple: if a playlist button is <40px high, the image and description are hidden.

Will commit an audioglow skin that can be used to test this feature.

[pablo]

An additional change that went into 1280 was that the playlist image is now hidden if the playlist is smaller than 240 pixels. The problem with this change is that it effects the default player behavior (since the default playlist width is 180 px).

This feature should be specified in the skin XML, or as a configuration setting; the images should always be disabled by default.

[jeroen]

Reverted the specific code that looked at the skin width. It turned out the 'thumbs' skin setting could actually be used for that. Example:

		<component name="playlist">
			<settings>
				<setting name="fontcolor" value="0x000000" />
				<setting name="overcolor" value="0x000000" />
				<setting name="backgroundcolor" value="0xFFFFFF" />
				<setting name="thumbs" value="false" />
			</settings>
			<elements>
				<element name="item" src="item.png" />
				<element name="itemActive" src="itemActive.png" />
				<element name="itemOver" src="itemActive.png" />
				<element name="sliderCapBottom" src="sliderCap.png" />
				<element name="sliderCapTop" src="sliderCap.png" />
				<element name="sliderRail" src="sliderRail.png" />
				<element name="sliderThumb" src="sliderThumb.png" />
			</elements>
		</component>

That works fine IMO. It has a little less automagicness than the treshold value, but there's good and bad to that.

Updated the simple and the five skin to use this feature.