pubs: Use valid bibcodes for ADASS XXII references
pubs: Add ASCL references

We still need to register the individual Starlink applications
pubs: Squeeze to make room for LCOGT reference

Remove Holland et al 2013 on the basis that it's superfluous in the
presence of Chapin et al 2013. Shrink the Documentation section and
use a shorter URL (the previous URL was incorrect anyhow so point to
the main page).
pubs: Use bibcode as bibkey