Moncader/Breader — pull request #5 by kuu (2012-12-13 09:37:08+00:00)
Title: Bug fix for sub() and small change for sl()

[Issue]
Breader.sub(pFrom, pLength) doesn't work when creating sub-buffer of sub-buffer.

[Cause]
The first parameter (pFrom) should be an absolute position from the beginning of the ArrayBuffer (this.b.buffer)
However, the relative position from the beginning of the Uint8Array (this.b) was used.
This caused a wrong index of sub-buffer.

[Fix]
Adding this.b.byteOffset to the pFrom.