readme changes

README.markdown

@@ -22,10 +22,10 @@ Please see [The Scalatra Book](http://www.scalatra.org/guides/) for more.
 
 ## Latest version
 
-The latest version of Scalatra is `2.2.0`, and is published to [Maven Central](http://repo1.maven.org/maven2/org/scalatra).
+The latest version of Scalatra is `2.2.1`, and is published to [Maven Central](http://repo1.maven.org/maven2/org/scalatra).
 
 ```scala
-libraryDependencies += "org.scalatra" %% "scalatra" % "2.2.0"
+libraryDependencies += "org.scalatra" %% "scalatra" % "2.2.1"
 ```
 
 ### Development version
@@ -35,7 +35,7 @@ The develop branch is published as `2.2.1-SNAPSHOT` to [OSSRH](http://oss.sonaty
 ```scala
 resolvers += "Sonatype Nexus Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots"
 
-libraryDependencies += "org.scalatra" %% "scalatra" % "2.2.1-SNAPSHOT"
+libraryDependencies += "org.scalatra" %% "scalatra" % "2.2.2-SNAPSHOT"
 ```
 
 ## Community

project/build.scala

@@ -310,7 +310,7 @@ object ScalatraBuild extends Build {
 
     private val jettyVersion = "8.1.10.v20130312"
 
-    private val json4sVersion = "3.2.3"
+    private val json4sVersion = "3.2.4"
 
     private val scalateArtifact: String => String = {
       case sv if sv startsWith "2.8."   => "scalate-core"