move math3 back to test scope

Author: mengxr

core/pom.xml

@@ -79,6 +79,8 @@
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-math3</artifactId>
+      <version>3.3</version>
+      <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>com.google.code.findbugs</groupId>

pom.xml

@@ -260,6 +260,7 @@
         <groupId>org.apache.commons</groupId>
         <artifactId>commons-math3</artifactId>
         <version>3.3</version>
+        <scope>test</scope>
       </dependency>
       <dependency>
         <groupId>com.google.code.findbugs</groupId>