Upgrade Caldera

Thank you for creating this VM! 
Unfortunately, the version of several of the tools installed in RedHuntOS v2 are very outdated (including Caldera). A humble suggestion is to use some of these tools in Docker containers. Installing docker and then using Caldera in a container as demonstrated below:
```
docker run -p 7010:7010 -p 7011:7011 -p 7012:7012 -p 8888:8888 caldera:server
```

