[MSHARED-250] added IT and fixed support for Maven 3.1-alpha-1/Eclipse Aether 0.9.0-M2 when using Maven 3.0.x (a lot easier to detect with this IT...)

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1467838 13f79535-47bb-0310-9956-ffa450edef68