Updates for latest Community Patch 0.2.2

- Fixes deal AI
- Improves AI combat and aggression
- Adds additional functions for barbarians (archers attack from camps, etc.)
- Fix for railroad connection in capital bug.
- Adds functions for Golden Age points, Great General points and Great Admiral points to be earned via buildings, policies and beliefs.
Merge pull request #9 from LoneGazebo/CommunityPatchUpdates

Updates for latest Community Patch 0.2.2