ELF Software Improvements

At the request of a fellow roaster I'm adding some clicking capabilities to the ELF control panel. I've already made the power button toggle the power when clicking on it and I'm working on adding some new buttons to increase and decrease the temperature. When I first designed the control panel I thought it would be easier to use keyboard shortcuts instead of looking for the mouse pointer in the middle of roasting. However, some folks, to my surprise, are running ELF on tablets and phones so using keyboard shortcuts is difficult. I should have the temperature buttons done in the next week or two. It doesn't take long, I just have to find the time to do it.