Possible 2009 heading correction omission

[ericbusboom]

The process_merge.py file has the special handling for the Sequence_Number_and_Table_Number_Lookup.xls file lines that are headings, but which are missing the decimal point, by looking for a break in line number monotonicity and '--' at the end of the table title.

However, it looks like the file has other erroneous lines that this pattern won't catch. For instance, on Line 16276, Table ID B19080, has the first line as line number = 5, title = 'Quintile Upper Limits:'. I'm not good at reading code, but process_merge.py:373 won't catch this case, and I couldn't find other code that would.