build: move commons-demo version to property

Author: javier-godoy

pom.xml

@@ -16,6 +16,7 @@
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<drivers.dir>${project.basedir}/drivers</drivers.dir>
 		<jetty.version>11.0.26</jetty.version>
+        <flowingcode.commons.demo.version>5.0.0</flowingcode.commons.demo.version>
 	</properties>
 
 	<organization>
@@ -56,11 +57,6 @@
 				<scope>import</scope>
 				<version>${vaadin.version}</version>
 			</dependency>
-            <dependency>
-            	<groupId>com.flowingcode.vaadin.addons.demo</groupId>
-            	<artifactId>commons-demo</artifactId>
-            	<version>5.0.0</version>
-            </dependency>
 		</dependencies>
 	</dependencyManagement>
 
@@ -148,6 +144,7 @@
         <dependency>
 			<groupId>com.flowingcode.vaadin.addons.demo</groupId>
 			<artifactId>commons-demo</artifactId>
+			<version>${flowingcode.commons.demo.version}</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>