New options:
AI_YELLOW_FLANKING - yellow flanking is disabled by default
IMPROVED_TACTICAL_UI - use name color to show soldier's status (disguised, drunk)
Removed obsolete options:
SHOW_COVER_INDICATOR
SHOW_ENEMY_RANK_ICON
SHOW_ENEMY_AWARENESS
git-svn-id: https://ja2svn.mooo.com/source/ja2_v1.13_data@2323 4f8fa57e-7814-0410-bad4-adc449f26b7c