Set dependency scope test to unit test libraries

Change-Id: I0d8e9897cc3a3693a76e7ebb1270a88cea9416cf
diff --git a/core/api/pom.xml b/core/api/pom.xml
index 1587174..540003a 100644
--- a/core/api/pom.xml
+++ b/core/api/pom.xml
@@ -33,16 +33,18 @@
 
     <dependencies>
         <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava-testlib</artifactId>
-        </dependency>
-        <dependency>
             <groupId>joda-time</groupId>
             <artifactId>joda-time</artifactId>
         </dependency>
         <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava-testlib</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
             <groupId>org.easymock</groupId>
             <artifactId>easymock</artifactId>
+            <scope>test</scope>
         </dependency>
     </dependencies>