added <dependencyManagement> to top-level pom.xml

Author: Luis Miranda

core/pom.xml

@@ -15,26 +15,22 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>${junitVersion}</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.mockito</groupId>
 			<artifactId>mockito-core</artifactId>
-			<version>1.10.19</version>
 			<scope>test</scope>
 		</dependency>
 
 		<!-- for log -->
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
-			<version>${slf4jVersion}</version>
 		</dependency>
 		<dependency>
 			<groupId>ch.qos.logback</groupId>
 			<artifactId>logback-classic</artifactId>
-			<version>${logbackVersion}</version>
 			<scope>test</scope>
 		</dependency>
 

pom.xml

@@ -11,10 +11,8 @@
 	<url>https://github.com/onelogin/java-saml</url>
 
 	<properties>
-		<slf4jVersion>1.7.12</slf4jVersion>
-		<junitVersion>4.12</junitVersion>
-
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<slf4jVersion>1.7.12</slf4jVersion>
 		<junitVersion>4.12</junitVersion>
 		<logbackVersion>1.1.3</logbackVersion>
 		<apacheCommonsLangVersion>3.4</apacheCommonsLangVersion>
@@ -25,6 +23,31 @@
 		<module>samples</module>
 	</modules>
 
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>junit</groupId>
+				<artifactId>junit</artifactId>
+				<version>${junitVersion}</version>
+			</dependency>
+			<dependency>
+				<groupId>org.mockito</groupId>
+				<artifactId>mockito-core</artifactId>
+				<version>1.10.19</version>
+			</dependency>
+			<dependency>
+				<groupId>org.slf4j</groupId>
+				<artifactId>slf4j-api</artifactId>
+				<version>${slf4jVersion}</version>
+			</dependency>
+			<dependency>
+				<groupId>ch.qos.logback</groupId>
+				<artifactId>logback-classic</artifactId>
+				<version>${logbackVersion}</version>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
 	<build>
 		<plugins>
 			<plugin>