Version 1.4 release, support for "program mode" which allows easy interaction with third party programs such as the soon-to-be-released Druid4Arduino.
Minor mods to demonstrate the use of type-specific prompts (showEnterNumericDataPrompt()).  These give an indication of the type of input the program is expecting, and help GUI progs like Druid figure out what is acceptable input.
Always reset to user mode, on exit.
Added commentary hints for real-life implementations.