add support for package: to the editor

editor/tools/plugins/com.google.dart.tools.deploy/plugin.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <?eclipse version="3.4"?>
 <plugin>
 
    <extension
          id="application"
          point="org.eclipse.core.runtime.applications">
       <application>
          <run
                class="com.google.dart.tools.deploy.DartIDEApplication">
@@ skipping 29 matching lines @@
                id="editor.toolbar">
             <control
                class="com.google.dart.tools.deploy.DartEditorToolbarControlContribution">
             </control>
          </toolbar>
       </menuContribution>
    </extension>
    <extension
          point="org.eclipse.ui.bindings">
       <key
-            commandId="com.google.dart.tools.ui.application.new"
-            contextId="org.eclipse.ui.contexts.window"
-            schemeId="com.google.dart.tools.dartAcceleratorConfiguration"
-            sequence="M1+M2+N">
-      </key>
-      <key
             commandId="com.google.dart.tools.ui.folder.open"
             contextId="org.eclipse.ui.contexts.window"
             schemeId="com.google.dart.tools.dartAcceleratorConfiguration"
             sequence="M1+O">
       </key>
       <key
             commandId="com.google.dart.tools.ui.omnibox"
             schemeId="com.google.dart.tools.dartAcceleratorConfiguration"
             sequence="M1+3">
       </key>
@@ skipping 208 matching lines @@
       <command
             categoryId="org.eclipse.ui.category.window"
             defaultHandler="com.google.dart.tools.ui.omni.OmniBoxHandler"
             description="%command.omnibox.description"
             id="com.google.dart.tools.ui.omnibox"
             name="%command.omnibox.name"/> 
    </extension>
 
 
 </plugin>