Add filestore upload support to testappckan
Handle file-like objects with no ._name

e.g. from StringIO
webtest doesn't need actual filenames
fix TestAPPCKAN.call_action docstring
test for TestAppCKAN upload
start 3.3-dev
Revert "webtest doesn't need actual filenames"

This reverts commit 41cf922304d8713dcb26c53e9036eba86539da94.
use fieldname if filename not available
Merge branch 'add-filestore-upload-to-testapp'