fix has_quote detection to handle free-form string values in header cards

[dstndstn]

This fixes #420

[beckermr]

Syntax?

[esheldon]

Thanks Dustin. Is there still an issue with the integer conversions?

[beckermr]

Let's add an entry into the changelog and then this one is good to go! Thank you!

[beckermr]

Thank you!

[dstndstn]

Thanks Dustin. Is there still an issue with the integer conversions?

Hah, oh yeah, what I thought was the original problem :) They get handled as intended: saved as strings.

QID     = '55700500000000071282' / 
QOBSEQID= '55301400000000319065' / 
QICSEQID= '55351200000000356039' / 
QOBITER =                   11 / 
QOFFID  = '10000000000000000001' / 

[dstndstn]

Thanks!!