Use analogPinToChannel if it's defined
Removed call to analogPinToChannel for Leonardo
Check if ATmega32u4 is defined

Needed in order to work with Arduino Leonardo
Removed double instance of the same code
Update incorrect docs in tonePitchFollower example

The comments state that the speaker should be on pin 8, but the code references pin 9. Updated the comments to reflect the correct pin.
Merge pull request #1465 from mcoms/patch-1

Update incorrect docs in tonePitchFollower example
Fixed a typo in the WebServer example.
Merge branch 'issue1366' of github.com:Lauszus/Arduino into Lauszus-issue1366
Fixed robot libraries and examples for unified Arduino core
Merge pull request #1526 from interwho/master

Fixed a typo in the WebServer example.
Latest Adafruit_GFX fixes + moved GFX lib to utility folder

Updated constructor and dependent code, other minor fixes. Robot LCD
examples all compile, but not yet tested against actual hardware.
Merge pull request #1566 from PaintYourDragon/master

Latest Adafruit_GFX fixes + moved GFX lib to utility folder
Merge branch 'master' into working