How to install RemoteBox 2.1 tool on Ubuntu 16.04

RemoteBox 2.1 recently released, is a VirtualBox client tool that enables you to essentially administer the installation of a virtualbox on a server remotely (ie over the network), including its guests and interact with them as if they were running locally. RemoteBox 2.1 Changelog Added support for TCP mode on virtual serial ports Added support for encryption of the guest Added additional fields in the VMM, Encrypted & UUID Added support for 4 serial ports Added support for setting the audio controller codec Paused guests can now be powered off Set default guest OS types for new guests to Windows 7 64bit, Ubuntu 64bit, Solaris 11 64bit for their respective OS families Improved logon failure error reporting.