[ARIES-1255] esa-maven-plugin generates Subsystem-Content with version range for composite subsystems

This patch restricts the version range for Subsystem-Content entried that are derived from Maven Artifacts to be exactly the Maven version [a.b.c, a.b.c] as this maps to the Maven dependency model.

Previously the dependency was modeled as version="a.b.c" which actually is the same as [a.b.c, infinity]. 



git-svn-id: https://svn.apache.org/repos/asf/aries/trunk@1629208 13f79535-47bb-0310-9956-ffa450edef68