Added docs for .editor

Added jasny/forms-editor.less to jasny/bootstrap.less

docs/templates/pages/base-css.mustache

@@ -1121,6 +1121,10 @@ on multiple lines
       <hr>
       <h4>{{_i}}Form help text{{/i}}</h4>
       <p>{{_i}}To add help text for your form inputs, include inline help text with <code>&lt;span class="help-inline"&gt;</code> or a help text block with <code>&lt;p class="help-block"&gt;</code> after the input element.{{/i}}</p>
+      <hr>
+      <h4>Editor textarea</h4>
+      <p>Add <code>.editor</code> to any textarea or <code>.uneditable-textarea</code> to create a larger field for content editing.</p>
+      <p>Also add <code>.editor-html</code>, if the textarea will be replaced by e.g. CKEditor or TinyMCE.</p>
     </div>
     <div class="span8">
       <form class="form-horizontal">
@@ -1251,6 +1255,12 @@ on multiple lines
               </label>
             </div>
           </div>
+          <div class="control-group">
+            <label class="control-label">Editor textarea</label>
+            <div class="controls">
+              <textarea class="editor"></textarea>
+            </div>
+          </div>
           <div class="form-actions">
             <button type="submit" class="btn btn-primary">{{_i}}Save changes{{/i}}</button>
             <button class="btn">{{_i}}Cancel{{/i}}</button>

docs/templates/pages/index.mustache

@@ -54,6 +54,7 @@
     <div class="span3">
       <h3><a href="./base-css.html#forms">{{_i}}Form elements{{/i}}</a></h3>
       <p>{{_i}}Go beyond uneditable input and create a full uneditable form, with disabled and uneditable elements.{{/i}}</p>
+      <p>{{_i}}Add .editor to a textarea to create a larger field for content editing.{{/i}}</p>
     </div>
   </div><!--/row-->
 </div>

less/jasny/bootstrap.less

@@ -14,3 +14,5 @@
 
 // Base CSS
 @import "forms-uneditable.less";
+@import "forms-editor.less";
+