Merge pull request #13 from FoamyGuy/raise_default_volume

raise default volume

Merge pull request #12 from FoamyGuy/higher_headphone_volume

increase default headphone volume a little

Merge pull request #11 from samblenny/fix-example-link

fix broken "Volume test" example link in docs

Merge pull request #10 from samblenny/volume-fixes

Overhaul Volume Control Implementation

Merge pull request #7 from adafruit/add_reset

add hardware reset to examples

check for built-in i2s in example

make speaker louder by default

Merge pull request #2 from adafruit/initial_lib

library, examples and docs