simplify / restructure code

[jinjirosan]

def sensors

[jinjirosan]

Refactor everything after mvdwrd session :)

• for each sensor separate function including exception handling. Return values should be clean.
• one function to gather all sensor data into dictionary. Cleanup values correctly.
• define comm function for output to dweet.io and initialstate.com
• define simple main function to call the dictionary and comm function
• end with if name == "main":

[jinjirosan]

REFACTOR branch started

[jinjirosan]

Moved all sensor data related to weather conditions into one class. Moved all transmit code into one class, still sending to dweet.io, intitialstate.com but also need to send to centreon.