Added a null check before trying to close the stream.
Fixed a bug where the streaming failed exception was set on the upload session even if the upload
was already terminated and therefore the session is null.
Updated to 1.7.0-SNAPSHOT in the develop branch.
Upgraded to FineUploader 5.0.8. Upgraded to Vaadin 7.3.3.
Two performance improvements.
1) No longer copy the request parameters to a new map on every request.
2) A single temporary file is used for all chunks on a large upload which prevents a lot
of unnecessary file creation and deletion.
Updated version to 1.4.7.