Fixed #69 A ScriptProcessorNode runs even if not connected
Reducing start noise for Firefox
Fixed deprecated interfaces
Fixed #71 use decodeAudioData instead of createBuffer
Merge branch 'issue-71' into v0.2.6
Fixed #70 not use old APIs of WebAudioAPI
build v0.2.6
README++
Merge pull request #72 from mohayonao/v0.2.6

V0.2.6
README++