Abstracted main.py, boot.py so they never need to be changed
- added success and failed response options with proper HTTP response headers and body.
- success/fail responses determined by handler functions
- fixed crashes when unknown command is received in main (can still fail from handlers)
- fixed CORS issue when making a request from a browser
- added doc paragraphs
Handlers
- renamed so main can be general
- updated to out put tuple with success boolean value and response string
- standardized output text for led handlers
- added doc paragraphs