Release 1.3.3

Frozen examples

Include examples into release firmware - in order to simplify flash-n-try, flash image and simply run example:

>>> import network

# Connect to WiFi
>>> sta_if = network.WLAN(network.STA_IF)
>>> sta_if.active(True)
>>> sta_if.connect('<ssid>', '<password>')

# Run Hello World! :)
>>> import examples.hello_world as hello
>>> hello.run()