Fixes Issue 36 - Add version information to Hanlon.war

Recommended way of indicating version numbers in jar or war files is through manifest files.
    This code change adds corresponding manifest files to hanlon.util.jar, hanlon.core.jar and hanlon.war
    Manifest is created through a template added under script/hanlon.manifest

    Version number is generated following the standard git version technique used throughout

    Also a README file added to each of the file with corresponding name and version number