Missing dates

This should fix the missing dates for the ThruPlex projects. 
Reference :  https://docs.google.com/a/scilifelab.se/spreadsheet/ccc?key=0AthyAbVfoLVzdG5QSWFqeDdVR29XMGY2clhXeUdDTkE&usp=drive_web#gid=3

While it would be good to compare by Id rather than by values, that would require more deep changes, that might be addressed later