Added JS ruler pref

Here I've added a new HTML language file and a new Venda Theme that is based on the Stereokai Theme. You should select this theme to see the new js-prefix colours. If anyone hates this theme just add a new one to your liking but ensure that the following definition is included before the last `</array>` tag.

		<dict>
			<key>name</key>
			<string>venda jsprefix</string>
			<key>scope</key>
			<string>jsprefix.source.html</string>
			<key>settings</key>
			<dict>
				<key>background</key>
				<string>#444444</string>
				<key>foreground</key>
				<string>#ff0000</string>
			</dict>
		</dict>