Adafruit-circuitpython-fona

This release adds:
* https://github.com/adafruit/Adafruit_CircuitPython_FONA/pull/4 SMS Functionality - Send and read SMS messages from CircuitPython!
* See [the fona_sms.py example for usage information](https://github.com/adafruit/Adafruit_CircuitPython_FONA/blob/master/examples/fona_sms.py)

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-fona `.

Read the [docs](http://circuitpython.readthedocs.io/projects/fona/en/latest/) for info on how to use it.

This release adds:

**Compatibility**
* with `CircuitPython_MiniMQTT`, `CircuitPython_Requests`

**Methods**
* `reset`: performs a hardware reset on the modem
* `factory_reset`: factory reset modem
* `icccid`: rets. sim card's iccid number
* `unpretty_ip`

**Modules**
* `adafruit_fona_gsm`: Class for interfacing with 2G GSM modems (FONA808+GPS),
* Simpler user-code for attaching to, bringing up, and disconnecting GSM modem.
* Network connection and error handling is now handled from user-code instead of within the module (polling similar to ESP32SPI's `wifimanager`)

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-fona `.

Read the [docs](http://circuitpython.readthedocs.io/projects/fona/en/latest/) for info on how to use it.

This release adds:
* Compatibility for usage with the [Adafruit_Requests](https://github.com/adafruit/Adafruit_CircuitPython_Requests/) library
* New examples: Twitter Cheerlights, Adafruit IO HTTP Publish
* Updated `fona` module which increases network reliability and speed.

**NOTE:** This initial alpha version has not been tested with `CircuitPython_MQTT` or CircuitPython IOT SDK Libraries. Please report any bugs on the [issues page for this library](https://github.com/adafruit/Adafruit_CircuitPython_FONA/issues).

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-fona `.

Read the [docs](http://circuitpython.readthedocs.io/projects/fona/en/latest/) for info on how to use it.

This library provides hardware support for the Adafruit FONA cellular module. This library includes an interface for the cellular module (`adafruit_fona.py`) and a CPython `socket`-like interface (`adafruit_fona_socket.py`).

**NOTE:** This initial alpha version has not been tested with CircuitPython IoT libraries such as `CircuitPython_Requests` or `CircuitPython_MQTT`. Please report any bugs on the [issues page for this library](https://github.com/adafruit/Adafruit_CircuitPython_FONA/issues).

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-fona `.

Read the [docs](http://circuitpython.readthedocs.io/projects/fona/en/latest/) for info on how to use it.