Add documentation for EditableList method addItems (#62)

* Added documentation for addItems method

* Typo

* Typos

* Header and Height:auto features

* Added section for node configuration properties

* Merge with upstream

* Revert "Added section for node configuration properties"

This reverts commit 19aa946.

Author: DeanCording

docs/api/ui/editableList/index.md

@@ -15,6 +15,7 @@ own right. Used by the core `Switch` and `Change` nodes.
             <tr><td><a href="#options-addButton">addButton</a></td></tr>
             <tr><td><a href="#options-addItem">addItem</a></td></tr>
             <tr><td><a href="#options-connectWith">connectWith</a></td></tr>
+            <tr><td><a href="#options-header">header</a></td></tr>
             <tr><td><a href="#options-height">height</a></td></tr>
             <tr><td><a href="#options-filter">filter</a></td></tr>
             <tr><td><a href="#options-resize">resize</a></td></tr>
@@ -31,6 +32,7 @@ own right. Used by the core `Switch` and `Change` nodes.
         <h3>Methods</h3>
         <table>
             <tr><td><a href="#methods-addItem">addItem</a></td></tr>
+            <tr><td><a href="#methods-addItems">addItems</a></td></tr>
             <tr><td><a href="#methods-removeItem">removeItem</a></td></tr>
             <tr><td><a href="#methods-width">width</a></td></tr>
             <tr><td><a href="#methods-height">height</a></td></tr>
@@ -97,12 +99,21 @@ dragged from this list to any other jQuery `sortable` list, such as another `edi
         connectWith: ".my-other-list"
     });
 
+#### <a href="#options-header" name="options-header">header</a>
+
+<span class="method-return">Type: DOM/JQuery object</span>
+
+Inserts the DOM/JQuery object as a header for the list.
+
+    $("ol.list").editableList({
+        header: $("<div>").append($.parseHTML("<div style='width:40%; display: inline-grid'>Name</div><div style='display: inline-grid'>Type</div>")),
+    });
 
 #### <a href="#options-height" name="options-height">height</a>
 
 <span class="method-return">Type: String|Number</span>
 
-Sets the height of the list including, if enabled, its add button.
+Sets the height of the list including, if enabled, its add button.  Setting height to 'auto' removes the vertical scrollbar and displays the list at the full height needed to contain the contents.
 
     $("ol.list").editableList({
         height: 300
@@ -270,6 +281,14 @@ with the item in the list.
 
     $("ol.list").editableList('addItem',{fruit:"banana"});
 
+#### <a href="#methods-addItems" name="methods-addItems">addItems( itemData )</a>
+
+Adds items contained in an array to the end of the list. `itemData` is an array of objects that will be associated
+with the item in the list.
+
+    $("ol.list").editableList('addItem',[{fruit:"banana"},{fruit:"apple"},{fruit:"pear"}]);
+
+
 #### <a href="#methods-removeItem" name="methods-removeItem">removeItem( itemData )</a>
 
 Removes an item from the list. `itemData` is the object that identifies the item