Added latest version support for git storage

without this change you always have to pass the concrete version for git based storage
with this change we support passing of a latests version

fixes gh-745

pom.xml

@@ -370,6 +370,11 @@
 				<artifactId>maven-aether-provider</artifactId>
 				<version>${maven.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.apache.maven</groupId>
+				<artifactId>maven-artifact</artifactId>
+				<version>${maven.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.apache.maven</groupId>
 				<artifactId>maven-settings-builder</artifactId>