The S1 was signed on 10/9/2013 and filed with the SEC on 10/15/2013.  The S1 has not been approved yet, however.  The SEC will determine the cut off date to receive the dividend when the approve the S1 and there is no set timeframe for the SEC to approve the S1.  They must respond within 30 days to the S1, but if there are any issues with the S1 then the process may take longer.

To answer your question your shares bought yesterday will count.