Fix NASDAQ OMX OUCH 1.14 support

The size of an Order Accepted message is always 126 regardless of
whether the Cross Type field is supplied.

Signed-off-by: Jussi Virtanen <jussi.virtanen@valotrading.com>
Make NASDAQ OMX OUCH 1.14 message sizes fixed

An Order Accepted message, for example, has always the length 126.

Signed-off-by: Jussi Virtanen <jussi.virtanen@valotrading.com>
Merge pull request #107 from jvirtanen/fixes/nasdaqomx-ouch114

Fix NASDAQ OMX OUCH 1.14 support