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.
Merge pull request #22 from tobyk100/master

Got rid of overly aggresive xml parsing, which crashes in IE<=9.
Added flash pollyfill.
migration form old repo
Fixed coding issue
Updated maze template
Fixed bbox problem
Fixed getBBox
fix scroll bar at toolbox
Fixed hints issue
Update for svgweb files
Revert timeout for tooltips due to fix in svgweb
Correction after review
Added loader for svgweb
fixes Blockly.inject call inside initReadonly method
Fixed font issue. Delete all "squire" characters