Added Java7 micro benchmark

The javaPerf/javaBench.sh file contains the single line needed for compile and run of the tests in java.  This requires Maven and Java7 to be installed but all the needed jars are automatically downloaded when it runs.  Looks like the pl files changed a lot since last time I worked on this so I left the integration up to someone who has more recently worked with the files.  

The other developers wanted to see this implementation use jBLAS so that is what has been done.  If you however would like to see a pure java run for comparison the POM.XML can be modified by replacing PerfJavaBLAS with PerfJavaPure.