Roll gwt to 2.7.0 (from 2.5.1)

third_party/gwt-2.7.0/COPYING.html

Index: third_party/gwt-2.7.0/COPYING.html
diff --git a/third_party/gwt-2.5.1/COPYING.html b/third_party/gwt-2.7.0/COPYING.html
similarity index 95%
copy from third_party/gwt-2.5.1/COPYING.html
copy to third_party/gwt-2.7.0/COPYING.html
index 261533411fda3a9fd5df3776092017bfd3e3c001..e7dc50557cfe32f285e5ab6c7a031c5fabc06af4 100644
--- a/third_party/gwt-2.5.1/COPYING.html
+++ b/third_party/gwt-2.7.0/COPYING.html
@@ -293,11 +293,6 @@ name of the jar corresponding to your platform, e.g. "gwt-dev-linux.jar".
     <td class="license">(<a href="http://asm.objectweb.org/license.html">custom</a>)</td>
     <td class="location">com/google/gwt/dev/asm/ within gwt-dev.jar</td>
   </tr>
-  <tr class="even">
-    <td class="package">Browser Detect v2.1.6</td>
-    <td class="license"><a href="http://creativecommons.org/licenses/by/1.0/">Creative Commons Attribution 1.0</a></td>
-    <td class="location"><a href="http://google-web-toolkit.googlecode.com/svn/trunk/tools/benchmark-viewer/src/com/google/gwt/benchmarks/viewer/client/BrowserInfo.java">google-web-toolkit.googlecode.com</a>; transliterated into Java source</td>
-  </tr>
   <tr>
     <td class="package">Eclipse Java Development Tools (JDT)</td>
     <td class="license"><a href="http://www.eclipse.org/legal/epl-v10.html">Eclipse Public License v. 1.0</a></td>
@@ -319,21 +314,16 @@ name of the jar corresponding to your platform, e.g. "gwt-dev-linux.jar".
     <td class="location"><a href="http://mortbay.org/jetty/">mortbay.org/jetty</a></td>
   </tr>
   <tr class="even">
-    <td class="package">JFreeChart</td>
-    <td class="license"><a href="http://www.gnu.org/licenses/lgpl.html">GNU Lesser General Public License v. 2.1</a></td>
-    <td class="location"><a href="http://jfree.org/jfreechart/download.html">jfree.org</a></td>
-  </tr>
-  <tr>
     <td class="package">Mozilla Rhino</td>
     <td class="license"><a href="http://www.mozilla.org/MPL/MPL-1.1.txt">Mozilla Public License v. 1.1</a></td>
     <td class="location">com/google/gwt/dev/js/rhino/ within gwt-dev.jar</td>
   </tr>
-  <tr class="even">
+  <tr>
     <td class="package">Mozilla 1.7.12 (Linux only)</td>
     <td class="license"><a href="http://www.mozilla.org/MPL/MPL-1.1.txt">Mozilla Public License v. 1.1</a></td>
     <td class="location"><a href="http://developer.mozilla.org/en/docs/Download_Mozilla_Source_Code">mozilla.org</a></td>
   </tr>
-  <tr>
+  <tr class="even">
     <td class="package">Protobuf</td>
     <td class="license"><a href="http://www.opensource.org/licenses/bsd-license.php">New BSD License</a></td>
     <td class="location">