More tradition slots implemented;

Most of bugs fixed, hope this version works well. The bugs that weren't fixed will be fixed in the near future. Possibly I'll add 5 more traditions and fix Megalithic Builders tradition. Also I'll do something with Pirate ethos because its uncompleted.
The next update will be most likely the 600's one: I want it to be in this mod so far. But possibly I'll just create an another mod which will have all the cultures from this mod, but with new bookmarks.