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.
Merge pull request #22 from tobyk100/master

Got rid of overly aggresive xml parsing, which crashes in IE<=9.
IE9 and select fixes.
Merge pull request #24 from tobyk100/ie9-style

IE9 and select fixes.
Enable touch events for IE 10&11
Merge branch 'master' of https://github.com/code-dot-org/blockly-core
minor updates for enabling touch in IE after review
Some fixes to make blockly core validate better, nothing functionally different.
Merge pull request #27 from tobyk100/master

Some fixes to make blockly core validate better, nothing functionally di...
Merge pull request #26 from safihamid/master

Enable touch events for IE 10&11 and surface
Give IE11 conditional branch precedence over IE10 branch. Small style changes.
Build, nop.
Use build_fast instead of build, add new compressed blockly. Build fast relies on local jar, not web service.