upgrade to rails 2.3.12 and fix deprecation warning and fix some version numbers of gems used for testing

vendor/rails/activerecord/lib/active_record/associations/association_collection.rb

@@ -381,7 +381,7 @@ module ActiveRecord
           when /^find_or_create_by_(.*)$/
             rest = $1
             find_args = pull_finder_args_from(DynamicFinderMatch.match(method).attribute_names, *args)
-            return  send("find_by_#{rest}", find_args) ||
+            return  send("find_by_#{rest}", *find_args) ||
                     method_missing("create_by_#{rest}", *args, &block)
           when /^create_by_(.*)$/
             return create($1.split('_and_').zip(args).inject({}) { |h,kv| k,v=kv ; h[k] = v ; h }, &block)

vendor/rails/activerecord/lib/active_record/base.rb

@@ -1286,7 +1286,7 @@ module ActiveRecord #:nodoc:
 
       # Turns the +table_name+ back into a class name following the reverse rules of +table_name+.
       def class_name(table_name = table_name) # :nodoc:
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base#class_name is deprecated and will be removed in Rails 2.3.9.", caller)
+        ActiveSupport::Deprecation.warn("ActiveRecord::Base#class_name is deprecated and will be removed in Rails 3.", caller)
 
         # remove any prefix and/or suffix from the table name
         class_name = table_name[table_name_prefix.length..-(table_name_suffix.length + 1)].camelize

vendor/rails/activerecord/lib/active_record/version.rb

@@ -2,7 +2,7 @@ module ActiveRecord
   module VERSION #:nodoc:
     MAJOR = 2
     MINOR = 3
-    TINY  = 11
+    TINY  = 12
 
     STRING = [MAJOR, MINOR, TINY].join('.')
   end