added analytics to user/band details

lib/jam_ruby/models/band.rb

@@ -28,6 +28,10 @@ module JamRuby
       @logo_url = "http://www.jamkazam.com/images/bands/logos/#{self.id}.gif"
     end
 
+    def follower_count
+      return self.followers.size
+    end
+
     # helper method for creating / updating a Band
     def self.save(params)
       if params[:id].nil?

lib/jam_ruby/models/user.rb

@@ -83,6 +83,18 @@ module JamRuby
       return self.friends.exists?(user)
     end
 
+    def friend_count
+      return self.friends.size
+    end
+
+    def follower_count
+      return self.followers.size
+    end
+
+    def following_count
+      return self.followings.size
+    end
+
     def to_s
       return email unless email.nil?
       return name unless name.nil?