CSM Workaround Fix

Added a "Show troop choice" in the non-codex options. Renamed said entry
to Expanded options (with a notice to select first)
CSM and Black Legion Changes

CSM: Profile fixes for Mutilators and Maulerfiends, added Magma Cutters
profile

Black Legion: Profile Overhauls from Havoc to Obliterators. Added the
Expanded options tab (with the expanded troops flag)
fixed centurion weapon point cost, closes #504
Imperial Knight updates

updated rules, definitions, weapon entries for profiles. Household
Spearhead battle formation
Knight modifier update
Correcting mortar entry fof infantry squads and platoon command squads
Merge pull request #507 from Steague/master

Correcting mortar entry for infantry squads and platoon command squads
Fixed Vulture profile

It clashed with Vultures from other detachments.
Also tidied up its weapon options.