Bump campaign version to 8.0 for latest DCS.

Building IDs changed again. Ack the change in my two campaigns which
don't use these target types.

resources/campaigns/battle_of_abu_dhabi.json

@@ -7,5 +7,5 @@
   "description": "<p>You have managed to establish a foothold near Ras Al Khaima. Continue pushing south.</p>",
   "miz": "battle_of_abu_dhabi.miz",
   "performance": 2,
-  "version": "7.0"
+  "version": "8.0"
 }

resources/campaigns/black_sea.json

@@ -5,5 +5,5 @@
   "description": "<p>A medium sized theater with bases along the coast of the Black Sea.</p>",
   "miz": "black_sea.miz",
   "performance": 2,
-  "version": "7.0"
+  "version": "8.0"
 }