Update to Guava 19.0

--
MOS_MIGRATED_REVID=110349155
diff --git a/third_party/BUILD b/third_party/BUILD
index f31ee86..9744055 100644
--- a/third_party/BUILD
+++ b/third_party/BUILD
@@ -246,7 +246,7 @@
 
 java_import(
     name = "guava",
-    jars = ["guava/guava-18.0.jar"],
+    jars = ["guava/guava-19.0.jar"],
 )
 
 java_import(
@@ -261,7 +261,7 @@
 # For bootstrapping JavaBuilder
 filegroup(
     name = "guava-jars",
-    srcs = ["guava/guava-18.0.jar"],
+    srcs = ["guava/guava-19.0.jar"],
 )
 
 java_import(
diff --git a/third_party/README.md b/third_party/README.md
index b84127b..9a28ebf 100644
--- a/third_party/README.md
+++ b/third_party/README.md
@@ -135,7 +135,7 @@
 
 ## [guava](https://code.google.com/p/guava-libraries/)
 
-* Version: 18.0
+* Version: 19.0
 * License: Apache License 2.0