minor: tutorial, history, documentation updates

Author: TylerBrock

source/HISTORY.md

@@ -1,5 +1,11 @@
 # MongoDB Ruby Driver History
 
+### 1.6.4
+2012-06-06
+
+* Added ability to declare sort ordering via an ordered hash
+* Addresses major compatability issue with mongoid created by v1.6.3
+
 ### 1.6.3
 2012-06-05
 

source/TUTORIAL.md

@@ -180,7 +180,7 @@ Direction defaults to ascending order but can be specified as Mongo::ASCENDING,
     coll.find.sort(:i)
 
     # Sort in descending order by :i
-    coll.find.sort([:i, :desc])
+    coll.find.sort(:i => :desc)
 
 #### Counting Documents in a Collection