fixed hamcrest dependency name in maven pom

Author: seanyinx

pom.xml

@@ -15,7 +15,7 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>hamcrest</groupId>
+            <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-all</artifactId>
             <version>1.3</version>
             <scope>test</scope>