Add Option to Update TestExecute node machines automatically

It would be nice if there were an option/setting with TestExecute to choose to always go ahead and download & install the latest updates automatically.  This would be ideal for lab situations where there are multiple machines that need to get the update.  If users had a lab that they wanted to control more manually, then they could simply uncheck this option.  *We are aware of the silent install option and will be using that in the meantime, but this will first require us to be aware of an update and download the installation package first before updating the lab machines.