Cashing audio when loading.
Changed the trashcan to be align with Ross's design.
Repositioned to appear better in Dashboard.
Merge pull request #15 from tobyk100/master

Remove XY from workspaceToDom.
Merged from master.
Merge pull request #14 from nanan9177/blockly_fix

Audio + Trash Can
Updated blockly core to be able to play sound repeatedly.
Removed the reset timing.
Merged playAudioRepeatedly with playAudio.
Updated the volume check.
Merge pull request #19 from nanan9177/blockly_fix

Looping Sound
fix block hover select on IE
Use assetUrl function instead of BASE_URL with concat

Also loads audio with absolute paths.
Merge pull request #20 from brandonbloom/assetUrl

Use assetUrl function instead of BASE_URL with concat
Fix handopen.cur path
Fix audio loading
Ignore query params when getting file extensions
Got rid of overly aggresive xml parsing, which crashes in IE<=9.