V0.1.0

• Change object name to QCodeDecoder (it was QRCodeDecoder)
• No more console.log
• new jshint.rc
• watcher for gulp build and gulp hint
• add a prepareImage method so that one can decode directly from an image
• new example containing decodeImage method
• no more setDecoderCallback method
• keep searching for new qrcodes by default
• expose a once argument for the decodeFromCamera method
• remove prepareCanvas as this is just used internally
• add decodeFromVideo method
• add automated tests
  • for video
  • for image
• test browser support