Add support for system-out / system-err at <testsuite/> level.

Testsuite can have system-out / system-err per junit.xsd.

...
<xs:element name="testsuite">
    <xs:complexType>
        <xs:sequence>
            <xs:element ref="properties" minOccurs="0" maxOccurs="1"/>
            <xs:element ref="testcase" minOccurs="0" maxOccurs="unbounded"/>
            <xs:element ref="system-out" minOccurs="0" maxOccurs="1"/>
            <xs:element ref="system-err" minOccurs="0" maxOccurs="1"/>
        </xs:sequence>
        <xs:attribute name="name" type="xs:string" use="required"/>
        <xs:attribute name="tests" type="xs:string" use="required"/>
        <xs:attribute name="failures" type="xs:string" use="optional"/>
        <xs:attribute name="errors" type="xs:string" use="optional"/>
        <xs:attribute name="time" type="xs:string" use="optional"/>
        <xs:attribute name="disabled" type="xs:string" use="optional"/>
        <xs:attribute name="skipped" type="xs:string" use="optional"/>
        <xs:attribute name="timestamp" type="xs:string" use="optional"/>
        <xs:attribute name="hostname" type="xs:string" use="optional"/>
        <xs:attribute name="id" type="xs:string" use="optional"/>
        <xs:attribute name="package" type="xs:string" use="optional"/>
    </xs:complexType>
</xs:element>
...
Add Damien Nozay to authors
Release 1.3.0
Not required
Bump copyright
If classname isn't present, reuse test suite name
Fix crash if classname isn't defined at all, add tests
Update AUTHORS
Add a Maven Surefire report
Release 1.3.1