move up to Netty 4
diff --git a/pom.xml b/pom.xml
index 133e294..606c4ff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -233,20 +233,15 @@
       <artifactId>org.restlet.ext.slf4j</artifactId>
       <version>${restlet.version}</version>
     </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-core-asl</artifactId>
-      <version>1.9.11</version>
-    </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-mapper-asl</artifactId>
-      <version>1.9.11</version>
+   <dependency>
+     <groupId>com.fasterxml.jackson.core</groupId>
+     <artifactId>jackson-core</artifactId>
+     <version>2.2.2</version>
     </dependency>
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.0.0</version>
+      <version>1.0.13</version>
       <scope>runtime</scope>
     </dependency>
     <!-- Floodlight's dependencies -->
@@ -259,13 +254,13 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>13.0.1</version>
+      <version>14.0.1</version>
     </dependency>
     -->
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
-      <version>1.6.4</version>
+      <version>1.7.5</version>
     </dependency>
     <dependency>
       <groupId>org.restlet.jse</groupId>
@@ -283,19 +278,19 @@
       <version>4.1.21</version>
     </dependency>
     <dependency>
-      <groupId>org.jboss.netty</groupId>
-      <artifactId>netty</artifactId>
-      <version>3.2.6.Final</version>
+      <groupId>io.netty</groupId>
+      <artifactId>netty-all</artifactId>
+      <version>4.0.8.Final</version>
     </dependency>
     <dependency>
       <groupId>args4j</groupId>
       <artifactId>args4j</artifactId>
-      <version>2.0.16</version>
+      <version>2.0.25</version>
     </dependency>
     <dependency>
       <groupId>com.googlecode.concurrentlinkedhashmap</groupId>
       <artifactId>concurrentlinkedhashmap-lru</artifactId>
-      <version>1.3</version>
+      <version>1.4</version>
     </dependency>
     <!--<dependency>
       <groupId>org.python</groupId>
@@ -379,4 +374,4 @@
     </dependency>
     -->
   </dependencies>
-</project>
\ No newline at end of file
+</project>