Reroll of http://drupal.org/files/fix-scroll.patch from http://drupal.org/node/1888190 , to apply to DRs patched Aloha.

fix-scroll.patch

diff --git a/js/drupal.aloha.js b/js/drupal.aloha.js
index b793142..beae428 100644
--- a/js/drupal.aloha.js
+++ b/js/drupal.aloha.js
@@ -137,6 +137,10 @@ Drupal.aloha = {
     var id = $alohaEditable.attr('id');
 
     var content = Aloha.getEditableById(id).getContents();
+    // Avoid scrolling on submit by ensuring that the textarea is the
+    // same height as the Aloha editor.
+    $editable.height($alohaEditable.height());
+
     Aloha.jQuery('#' + id)
       .unbind('aloha-smart-content-changed.aloha')
       .mahalo();