Moved dependency version declaration into dependencyManagement section of webfx parent root pom for the following modules: GWT, Elemental2 & GWT-time

Author: salmonb

webfx-demo-particles-application-gwt/pom.xml

@@ -29,19 +29,16 @@
         <dependency>
             <groupId>com.google.elemental2</groupId>
             <artifactId>elemental2-svg</artifactId>
-            <version>1.1.0</version>
         </dependency>
 
         <dependency>
             <groupId>org.jresearch.gwt.time</groupId>
             <artifactId>org.jresearch.gwt.time</artifactId>
-            <version>2.0.7</version>
         </dependency>
 
         <dependency>
             <groupId>com.google.gwt</groupId>
             <artifactId>gwt-dev</artifactId>
-            <version>2.9.0</version>
         </dependency>
 
         <dependency>