V4.6.0.3

Updating Innoslate image to the latest version, 4.6.0.3. Tracked in issue #15 (closed)

Includes the following updates:

• links to new setup and core .war files
• updated hardening_manifest
• updates to Dockerfile to bring it inline with Ironbank requirements and improve functionality
• fixed typos in innoslate scripts
• enhancements to readme
• now includes a dummy settings.properties file to speed up initial setup of innoslate