Added new exception 'InvenioWebSubmitWarningWebSubmitFunctionFailed'. This exception will be raised by a WebSubmit function when it encounters unexpected behaviour and cannot complete its task. The exception will be logged as a warning.
Added new exception 'InvenioWebSubmitWarningWebSubmitFunctionFailed'. This exception will be raised by a WebSubmit function when it encounters unexpected behaviour and cannot complete its task. The exception will be logged as a warning.

tiborsimko/invenio,inveniosoftware/invenio,tiborsimko/invenio,inveniosoftware/invenio