fix: dataImport task should not run tomcatClean and tomcatDeploy tasks

This permit to avoid to undeploy and deploy apps when only a dataImport is run
Should solve issue #252

buildSrc/src/main/groovy/org/apereo/portal/start/gradle/plugins/GradleTomcatDeployPlugin.groovy

@@ -7,13 +7,20 @@ import org.gradle.api.tasks.Delete
 class GradleTomcatDeployPlugin implements Plugin<Project> {
     @Override
     void apply(Project project) {
+        boolean taskIsDataImport = project.gradle.startParameter.taskNames.any {
+            it.contains('dataImport')
+        };
         project.task('tomcatClean', type: Delete) {
             group 'Tomcat'
             description 'Removes this project from the integrated Tomcat servlet container'
             dependsOn project.rootProject.tasks.portalProperties
             mustRunAfter project.rootProject.tasks.tomcatInstall
 
             doFirst {
+		if (taskIsDataImport) {
+                    logger.lifecycle "Skipping tomcatClean;  dataImport doesn't require tomcatClean"
+                    return
+                }
                 File serverBase = project.rootProject.file(project.rootProject.ext['buildProperties'].getProperty('server.base'))
                 File deployDir = new File (serverBase, "webapps/${project.name}")
                 logger.lifecycle("Removing deployed application from servlet container at location:  ${deployDir}")
@@ -27,6 +34,10 @@ class GradleTomcatDeployPlugin implements Plugin<Project> {
             dependsOn 'assemble'
 
             doFirst {
+		if (taskIsDataImport) {
+                    logger.lifecycle "Skipping tomcatDeploy;  dataImport doesn't require tomcatDeploy"
+                    return
+                }
                 File serverBase = project.rootProject.file(project.rootProject.ext['buildProperties'].getProperty('server.base'))
                 File deployDir = new File (serverBase, "webapps/${project.name}")
                 logger.lifecycle("Deploying assembled application to servlet container at location:  ${deployDir}")