Build binding for 2.4.0, not 2.5.0-SNAPSHOT

[Bruce_Osborne]

This script updates 2.4 to the latest binding.

Zigbee and zwave manual install script

A number of people have run into trouble performing manual installs of the Zigbee and Z-Wave bindings. A manual install (dropping the jar into addons) is rarely needed, but some people prefer a manual install over apt-get, or want to use a stable OH release with a recent Zigbee or Z-Wave binding. Here is a script that will hopefully make it easier to install, upgrade, and uninstall these bindings, and prevent some of the common issues. Who would benefit from this script: Anyone wanting to tes…