#617 fixed issue with mlDeleteModuleTimestampsFile

Made filePath a class property and added @input and added @optional annotation on filePath

Author: Peter Kester

examples/ssl-project/build.gradle

@@ -1,5 +1,6 @@
 plugins {
-  id "com.marklogic.ml-gradle" version "3.6.0"
+	id "net.saliman.properties" version "1.5.1"
+  id "com.marklogic.ml-gradle" version "4.3.4"
 }
 
 /*

src/main/groovy/com/marklogic/gradle/task/DeleteModuleTimestampsFileTask.groovy

@@ -1,12 +1,18 @@
 package com.marklogic.gradle.task
 
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Optional
 import org.gradle.api.tasks.TaskAction
 
 class DeleteModuleTimestampsFileTask extends MarkLogicTask {
 
+	@Input
+	@Optional
+	String filePath;
+
     @TaskAction
     void deleteFile() {
-	    String filePath = getAppConfig().getModuleTimestampsPath()
+	    filePath = getAppConfig().getModuleTimestampsPath()
         File f = new File(filePath)
         if (f.exists()) {
             println "Deleting " + f.getAbsolutePath() + "\n"