Update pom, add StringBuilderUtils.
diff --git a/pom.xml b/pom.xml
index ef01e3b..9a9bb4b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,17 +48,22 @@
 
   <dependencies>
     <dependency>
-      <groupId>com.android.support</groupId>
-      <artifactId>support-v4</artifactId>
-      <version>19.0.1</version>
+      <groupId>android.support</groupId>
+      <artifactId>compatibility-v4</artifactId>
+      <version>22.0.0</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>android</groupId>
       <artifactId>android</artifactId>
-      <version>5.0_r1</version>
+      <version>5.1.1_r2</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-core</artifactId>
+      <version>1.3</version>
+    </dependency>
   </dependencies>
 
   <build>
@@ -76,6 +81,15 @@
     </pluginManagement>
     <plugins>
      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.3</version>
+        <configuration>
+          <source>1.7</source>
+          <target>1.7</target>
+        </configuration>
+      </plugin>
+     <plugin>
       <groupId>com.jayway.maven.plugins.android.generation2</groupId>
       <artifactId>android-maven-plugin</artifactId>
       <configuration>
@@ -87,6 +101,7 @@
      <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-source-plugin</artifactId>
+      <version>2.4</version>
       <executions>
        <execution>
         <id>attach-sources</id>
@@ -99,6 +114,7 @@
      <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-javadoc-plugin</artifactId>
+      <version>2.10.3</version>
       <configuration>
        <sourcepath>src</sourcepath>
       </configuration>