Merge pull request #2 from devongovett/master

Support ArrayBufferViews in BlobBuilder constructor
Added a test for the case for the module exports false to check that blobs really can not be constructed because the tools don't exist. This also gets rid of zuul resulting in error when 0 tests are run for some browsers.
0.0.3
Licence to readme
Fixed typo in fail message
Fix for old browsers that don't support ArrayBufferViews in Blob constructor

Safari 6 and perhaps others supported the Blob constructor but not BlobBuilder. However, ArrayBufferViews in the Blob constructor were broken or not supported. Unfortunately, the tests didn't catch this since they weren't being run at all if Blob was undefined.

This separates out that check and maps ArrayBufferViews to ArrayBuffers in the Blob constructor as well as BlobBuilder when necessary.