JmeterBundle is just a wrapper around the apache jmeter software, which allows access to be used with OASIS/FitNesse.
To rebuild and run JmeterBundle you must have Apache Ant installed and in the current PATH.
This simplest way to build and run JMeter is to simply execute the "run-jmeter.bat" file. This will automatically resolve all dependencies, compile, package and execute JMeter.
To download additional jars and source code needed for building the code and documentation:
To build JMeter from source: ant [install]
To rebuild: ant clean install
To run JMeter GUI or a jmx: ant run
ant run -Djmx=test/SimpleHttpTest1.jmx