mkollo

**Describe the bug** Since 11.1.0, due to the change in openephysbinaryrawio.py, neo/rawio/openephysbinaryrawio.py", line 215, OpenEphys files without events cannot be opened: File "site-packages/neo/rawio/baserawio.py", line 179, in parse_header self._parse_header() File "site-packages/neo/rawio/openephysbinaryrawio.py",...