Roll gwt to 2.7.0 (from 2.5.1)

third_party/gwt-2.7.0/COPYING

Index: third_party/gwt-2.7.0/COPYING
diff --git a/third_party/gwt-2.5.1/COPYING b/third_party/gwt-2.7.0/COPYING
similarity index 96%
copy from third_party/gwt-2.5.1/COPYING
copy to third_party/gwt-2.7.0/COPYING
index 95a65cf7dfa227f86e448670bcee65569eefad20..5428462491a2076f5aa6b0c1e96f9431125d62b3 100644
--- a/third_party/gwt-2.5.1/COPYING
+++ b/third_party/gwt-2.7.0/COPYING
@@ -202,13 +202,6 @@ e.g. "gwt-dev-linux.jar".
     http://asm.objectweb.org/license.html
   Source code availability: com/google/gwt/dev/asm/ within gwt-dev.jar
   
-* Browser Detect v2.1.6
-  License: Creative Commons Attribution 1.0
-    http://creativecommons.org/licenses/by/1.0/
-  Source code availability:
-    http://google-web-toolkit.googlecode.com/svn/trunk/tools/benchmark-viewer/src/com/google/gwt/benchmarks/viewer/client/BrowserInfo.java
-    (transliterated into Java source)
-
 * Eclipse Java Development Tools (JDT)
   License: Eclipse Public License v. 1.0 
     http://www.eclipse.org/legal/epl-v10.html
@@ -229,12 +222,6 @@ e.g. "gwt-dev-linux.jar".
   Source code availability:
     http://mortbay.org/jetty/
 
-* JFreeChart
-  License: GNU Lesser General Public License v. 2.1
-    http://www.gnu.org/licenses/lgpl.html
-  Source code availability: 
-    http://jfree.org/jfreechart/download.html
-
 * Mozilla Rhino
   License: Mozilla Public License v. 1.1
     http://www.mozilla.org/MPL/MPL-1.1.txt
@@ -252,5 +239,3 @@ e.g. "gwt-dev-linux.jar".
   Source code availablility:
     http://code.google.com/p/protobuf/source/checkout
   Binary modifications consist of package-rebasing. The rebased classes are rooted at com/google/gwt/dev/protobuf/ within gwt-dev.jar
-
-