Fix to EK prereqs:
- changes EK to use new Weapon Prof ~ Martial catch-all
- and Fighter to use it too (most other were already using it...)

Issue#: DATA-1147


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@20571 ef53c05b-3124-4d59-ae7d-fe3273f42be7