Regression: XML reports are serialized incorrectly

[jarmoniak]

While looking at XML renderers, I've noticed that they're now rendered incorrectly. Please hold the release. I'm fixing it.

<PluginUpdatesReport>
	<summary>
		<usingLastVersion>1</usingLastVersion>
		<nextVersionAvailable>1</nextVersionAvailable>
		<nextIncrementalAvailable>0</nextIncrementalAvailable>
		<nextMinorAvailable>10</nextMinorAvailable>
		<nextMajorAvailable>1</nextMajorAvailable>
	</summary>
	<pluginManagements>
		<pluginManagement>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-antrun-plugin</artifactId>
			<currentVersion>1.3</currentVersion>
			<nextVersion>1.4</nextVersion>
			<minors>
				<optional[minor]>1.4</optional[minor]>
				<optional[minor]>1.5</optional[minor]>
				<optional[minor]>1.6</optional[minor]>
				<optional[minor]>1.7</optional[minor]>
				<optional[minor]>1.8</optional[minor]>
			</minors>
			<majors>
				<optional[major]>3.0.0</optional[major]>
				<optional[major]>3.1.0</optional[major]>
			</majors>
			<status>minor available</status>
		</pluginManagement>
...