Updated changelog

ChangeLog

@@ -8,7 +8,7 @@ Fix: Do not report trigger errors twice.
 Fix: Error when creating event was not reported.
 Fix: Bug of import of agenda when using https link
 Fix: Field nature not saved correctly
-Fix: Substituion of extra field was ko for order
+Fix: Substitution of extra field was ko for order
 Fix: Bad translation of date format for pt_BR.
 Fix: priority field of agenda record is smallint.
 Fix: Missing loading of lang in some pages.
@@ -28,7 +28,7 @@ Fix: Enable extrafields for customer order, proposal and invoice lines. This fea
 Fix: user right on Holiday for month report nor working.
 Fix: [ bug #1250 ] "Supplier Ref. product" sidebar search box does not work
 Fix: Bad space in predefined messages. 
-Fix: Signature was not added for email sent from thirdparty page.
+Fix: [ bug #1256 ] Signature was not added for email sent from thirdparty page.
 Fix: Action event SHIPPING_VALIDATE is not implemented
 Fix: The customer code was set to uppercase when using numbering module leopard. We
      must keep data safe of any change.