The version tool provides information about web applications installed on the local tomcat servlet container.

It does this by reading the tomcat file system, specifically MANIFEST.MF files.  To do this, context of the local
installation is required.  Additionally the web apps to report on are required.  This context is provided to the 
tool through a property file called version-tool.properties.

The property file is in the format:

tomcat_path=/var/lib/tomcat7/webapps/ (absolute path to tomcat web apps dir)
web_app_name=cn (name of a web app to report on, can be any number of these key/value pairs)
web_app_name=knb
web_app_name=portal

The tool is deployed with a default properties file along with the executable jar file.  The name of the default properties
file is version-tool.properties.  An override property file can be passed into the command using a flag -F<filePath> with
no space between -F and <filePath>.  This will work for either the jar or shell script.

To generate HTML:  Pass an -html flag into the tool to generate an html output instead of text.  
This html output can then be redirected to a file for display under a web server.