Generalization and bug fixes

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

First working concept

v1.0

initial commit