[fitsbits] 64-bit integers

[Thierry Forveille]

William Pence writes:
 > Given the past controversies about adding 64-bit integer support to FITS, 
 > it is somewhat remarkable that there has been so little discussion of 
 > this now. Should this silence be interpreted to mean that everyone here 
 > is in favor of starting the official approval process on this proposal?  
It probably does. Both hardware and compilers have evolved towards 64 bit
over the last few years, removing what was then the main objection.

 > If so, then the formal 30-day public comment period could start soon.
 > 
I'd be in favour of doing that.