Enabling dense storage for case in which large number of stars
are in one pixel. Without dense storage, the maximum size limit
of compactly stored attributes (64 kB) can be overrun.
Merge branch 'subpixel' of github.com:gregreen/bayestar into subpixel
Removing attribute phase change.
Small change.
Merge branch 'subpixel' of github.com:gregreen/bayestar into subpixel