Chaos: profile changes

Linked Legacies of Ruin to all possible models (barring the Warhound
Titan pending update to IA:13 rules).

Fixed up Lord of Battle profile and Chosen Champion profile (both
versions).
Linked all known Krak Grenade entries, Frag grenade entries are linked
under Assault Grenades.
Finished linking all known vehicle upgrade options. Expanded on
Vindicator, Predator and Land Raider entries.