Updated xrefs for anti-ice; added ice accretion speed increments
Added cargo bay weight limitations
Improved layout of weights
Updated xrefs for navigation
Added definition of A320 Forward CG
Reduced size of xrefs and made them blue
Fixed spacing before xref
Improved Ice protection section
Added approx APU fuel burn
Fixed typo
Updated xrefs for Autopilot, added sharklet info
Updated xrefs and cleaned up Airport section