Improvements for ExtendedDocument initializer

* Tries to send arg= to the Document before setting the attribute

Signed-off-by: Matt Aimonetti <mattaimonetti@gmail.com>

lib/couchrest/mixins/properties.rb

@@ -126,4 +126,4 @@ module CouchRest
       
     end
   end
-end
+end

lib/couchrest/more/extended_document.rb

@@ -33,6 +33,11 @@ module CouchRest
     
     def initialize(passed_keys={})
       apply_defaults # defined in CouchRest::Mixins::Properties
+      passed_keys.each do |k,v|
+        if self.respond_to?("#{k}=")
+          self.send("#{k}=", passed_keys.delete(k))
+        end
+      end if passed_keys
       super
       cast_keys      # defined in CouchRest::Mixins::Properties
       unless self['_id'] && self['_rev']
@@ -212,4 +217,4 @@ module CouchRest
     end
     
   end
-end
+end