调整主pom的cobertura插件配置，让他能集成多模块的测试用例

Author: oldmanpushcart

pom.xml

@@ -98,10 +98,12 @@
                 <artifactId>cobertura-maven-plugin</artifactId>
                 <version>2.7</version>
                 <configuration>
+                    <outputDirectory>./target/tmpCobertura</outputDirectory>
                     <formats>
                         <format>html</format>
                         <format>xml</format>
                     </formats>
+                    <aggregate>true</aggregate>
                     <check />
                 </configuration>
             </plugin>