[08/14] maven git commit: [MNG-6003] Drastically reduce JAVA_HOME discovery code

[MNG-6003] Drastically reduce JAVA_HOME discovery code All special handling has been removed. JAVA_HOME must be set properly by the user if necessary. Error messages have been graciously borrowed from the Tomcat start scripts. Project: http://git-wip-us.apache.org/repos/asf/maven/repo Commit: ht

[08/14] maven git commit: [MNG-6003] Drastically reduce JAVA_HOME discovery code

[MNG-6003] Drastically reduce JAVA_HOME discovery code All special handling has been removed. JAVA_HOME must be set properly by the user if necessary. Error messages have been graciously borrowed from the Tomcat start scripts. Project: http://git-wip-us.apache.org/repos/asf/maven/repo Commit: ht