Bump guava to 21.0

Author: shs96c

.idea/libraries/guava.xml

@@ -6,7 +6,7 @@
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
 	<classpathentry kind="lib" path="/third-party/java/hamcrest/hamcrest-core-1.3.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/hamcrest/hamcrest-library-1.3.jar"/>
-	<classpathentry kind="lib" path="/third-party/java/guava/guava-20.0.jar" sourcepath="/third-party/java/guava/guava-20.0-sources.jar"/>
+	<classpathentry kind="lib" path="/third-party/java/guava/guava-21.0.jar" sourcepath="/third-party/java/guava/guava-21.0-sources.jar"/>
 	<classpathentry kind="lib" path="/third_party/java/htmlunit/htmlunit-2.23.jar" sourcepath="/third-party/java/htmlunit/htmlunit-2.21-sources.jar"/>
 	<classpathentry kind="lib" path="/third_party/java/htmlunit/neko-htmlunit-2.23.jar" sourcepath="/third-party/java/htmlunit/neko-htmlunit-2.21-sources.jar"/>
 	<classpathentry kind="lib" path="/third_party/java/htmlunit/htmlunit-core-js-2.23.jar"/>

java/client/.classpath

@@ -15,7 +15,7 @@
 	<classpathentry kind="lib" path="/third-party/java/commons-logging/commons-logging-1.2.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/jcip_annotations/jcip-annotations-1.0.jar" sourcepath="/third-party/java/jcip_annotations/jcip-annotations-1.0-sources.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/netty/netty-3.5.7.Final.jar"/>
-	<classpathentry kind="lib" path="/third-party/java/guava/guava-20.0.jar" sourcepath="/third-party/java/guava/guava-20.0-sources.jar"/>
+	<classpathentry kind="lib" path="/third-party/java/guava/guava-21.0.jar" sourcepath="/third-party/java/guava/guava-21.0-sources.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/mockito/mockito-core-1.9.5.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/jetty/jetty-repacked.jar"/>
 	<classpathentry kind="lib" path="/third-party/java/yaml/snakeyaml-1.15.jar" sourcepath="/third-party/java/yaml/snakeyaml-1.15-sources.jar"/>

java/server/.classpath

@@ -1,8 +1,8 @@
 prebuilt_jar(
   name = 'guava',
-  maven_coords = 'com.google.guava:guava:jar:20.0',
-  binary_jar = 'guava-20.0.jar',
-  source_jar = 'guava-20.0-sources.jar',
+  maven_coords = 'com.google.guava:guava:jar:21.0',
+  binary_jar = 'guava-21.0.jar',
+  source_jar = 'guava-21.0-sources.jar',
   visibility = [
     'PUBLIC',
   ],