Merge pull request adafruit#27 from kattni/speaker-enable

Update SPEAKER_ENABLE pin name.

Merge pull request adafruit#26 from kattni/remove-errant-line

Remove errant line from example.

Merge pull request adafruit#25 from kattni/mp3-playback

Add MP3 playback and example with files.

Merge pull request adafruit#16 from apendley/extended_tone_demo

Add extended tone demo to examples

Merge pull request adafruit#22 from dhalbert/keyboard-layout-fix

fix on-demand creation of .keyboard_layout

Merge pull request adafruit#19 from kattni/indent

Fix indent.

Merge pull request adafruit#15 from kattni/rotation

Adding rotation demo.

Merge pull request adafruit#13 from kattni/macropad-demos

Add demos, update code to create HID objects when needed

Merge pull request adafruit#11 from tonymitchell/patch-1

Fix typo in documentation for keys.events

Merge pull request adafruit#8 from FoamyGuy/len_pixels

Compatibility with LED_Animation library