Merge pull request #104 from thijstriemstra/master

document destroy method (#94)
Fix stereo handling in getPeaks (off-by-one)
Merge pull request #106 from skimbrel/master

Fix stereo handling in getPeaks (off-by-one)
resolves #105 - Float32Array length cannot be a float in Firefox
resolves #97 - set cursor height immediately
#98 don't call pause() in loadBuffer
resolves #90 - add "finish" event
update readme, bump version