Fixes for building & RPM tweaks

So here's the changes we have made to make this build an RPM successfully.

We modified the parent pom version (see #17) and tweaked the directory ownership and permissions to get it to work.  With the original directory/file permissions the /usr/share/jmxterm was _without_ an execute bit set so simply doing a 'ls' of it caused weirdness:

    psmith@app2.qa5.acx:/home/psmith [UNKNOWN]
    $ ll /usr/share/jmxterm/
    ls: cannot access /usr/share/jmxterm/jmxterm-uber.jar: Permission denied
    total 0
    -????????? ? ? ? ?            ? jmxterm-uber.jar

With these changes the directory can be inspected and the JAR doesn't need execute.