"lastModifiedDate" => "lastModified"

To mimic HTML5 File API, we no longer use Date objects. We just use
Numbers to represent dates.

Use File.webkitRelativePath over .name when we can

Bump version to 0.0.7

Fix UploadCollection to trigger reset properly. Bump to 0.0.6.

Bump to version 0.0.5; fix crash in abort()

Bump version to 0.0.4

Version bump to 0.0.3

Optimize UploadCollection.next()