In the past, GNU tools used quotes `like this'. Modern practice is to
use quotes 'like this'. Update Star Traders to follow this newer
standard, including all PO files.
Change the whitespacing and word-wrapping of the help text, change the
padding and word-wrapping on various other strings, add the standard
header comment. Also change a number of strings ("Y/N" to "Д/Н", "Ц" to
"Н", "Цајтсеф" to "Зајцеф").
