No way for consumer to handle crypto related errors when calling loadPdf()

[thealexbaron]

Currently base/core/crypto.js calls error() on errors. There is no callback for catching these errors, and the errors don't emit to pdfjs_parseDataError.

Here is the PDF causing the error: https://drive.google.com/file/d/0B3yADm5p-GRCRExYVXFjTnhvQ2c/view?usp=sharing

[modesty]

fixed in v1.1.1.