Gutenbird demo sketch: monitors one or more Twitter accounts
for changes, displaying updates on attached thermal printer.
Written by Adafruit Industries, distributed under BSD License.

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Designed for the Adafruit Internet of Things printer
Pick one up at http://www.adafruit.com/products/717 !
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REQUIRES ARDUINO IDE 1.0 OR LATER -- Back-porting is not likely to
occur, as the code is deeply dependent on the Stream class, etc.

Also requires Adafruit Thermal Printer Library:
  https://github.com/adafruit/Adafruit-Thermal-Printer-Library
and Adafruit fork of Peter Knight's Cryptosuite library for Arduino:
  https://github.com/adafruit/Cryptosuite

Required hardware includes an Ethernet-connected Arduino board such
as the Arduino Ethernet or other Arduino-compatible board with an
Arduino Ethernet Shield, plus an Adafruit Mini Thermal Receipt printer
and all related power supplies and cabling.

Resources:
http://www.adafruit.com/products/418 Arduino Ethernet
http://www.adafruit.com/products/284 FTDI Friend
http://www.adafruit.com/products/201 Arduino Uno
http://www.adafruit.com/products/201 Ethernet Shield
http://www.adafruit.com/products/597 Mini Thermal Receipt Printer
http://www.adafruit.com/products/600 Printer starter pack

Uses Twitter 1.1 API.  This REQUIRES a Twitter account and some account
configuration.  Start at dev.twitter.com, sign in with your Twitter
credentials, select "My Applications" from the avatar drop-down menu at the
top right, then "Create a new application."  Provide a name, description,
placeholder URL and complete the captcha, after which you'll be provided a
"consumer key" and "consumer secret" for your app.  Select "Create access
token" to also generate an "access token" and "access token secret."
ALL FOUR STRINGS must be copied to the correct positions in the globals below,
and configure the search string to your liking.  DO NOT SHARE your keys or
secrets!  If you put code on Github or other public repository, replace them
with dummy strings.