Align Guava and Guice to Gerrit's master version

Change-Id: Ica3c99a0fcd18508c99d9d0fae6afca3e99aef37

github-oauth/pom.xml

diff --git a/github-oauth/pom.xml b/github-oauth/pom.xml
index 97e9de4..d1b4ccc 100644
--- a/github-oauth/pom.xml
+++ b/github-oauth/pom.xml
@@ -77,13 +77,13 @@
     <dependency>
       <groupId>com.google.inject</groupId>
       <artifactId>guice</artifactId>
-      <version>3.0</version>
+      <version>4.1.0</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>14.0</version>
+      <version>20.0</version>
       <scope>provided</scope>
     </dependency>
     <dependency>