build: fix gradle 3.2.1 deprecations

build.gradle

@@ -29,8 +29,8 @@ task run(dependsOn: ':jme3-examples:run') {
 
 defaultTasks 'run'
 
-task libDist(dependsOn: subprojects.build) << {
-//    description 'Builds and copies the engine binaries, sources and javadoc to build/libDist'
+task libDist(dependsOn: subprojects.build, description: 'Builds and copies the engine binaries, sources and javadoc to build/libDist') {
+    doLast {
         File libFolder = mkdir("$buildDir/libDist/lib")
         File sourceFolder = mkdir("$buildDir/libDist/sources")
         File javadocFolder = mkdir("$buildDir/libDist/javadoc")
@@ -59,6 +59,7 @@ task libDist(dependsOn: subprojects.build) << {
                 }
             }
         }
+    }
 }
 
 task createZipDistribution(type:Zip,dependsOn:["dist","libDist"], description:"Package the nightly zip distribution"){

jme3-bullet-native-android/build.gradle

@@ -102,7 +102,8 @@ task copyJmeAndroid(type: Copy, dependsOn:copyJmeCpp) {
     into outputDir
 }
 
-task generateNativeHeaders(dependsOn: copyJmeAndroid) << {
+task generateNativeHeaders(dependsOn: copyJmeAndroid) {
+    doLast {
         String destDirPath = jniPath
         String classes = " \
                 com.jme3.bullet.PhysicsSpace, \
@@ -153,6 +154,7 @@ task generateNativeHeaders(dependsOn: copyJmeAndroid) << {
             args '-classpath', projectClassPath
             args classes.split(",").collect { it.trim() }
         }
+    }
 }
 
 task buildBulletNativeLib(type: Exec, dependsOn: generateNativeHeaders) {

jme3-bullet-native/build.gradle

@@ -215,7 +215,7 @@ unzipBullet.dependsOn {
     }
 }
 
-task unzipBulletIfNeeded << {
+task unzipBulletIfNeeded {
 }
 
 unzipBulletIfNeeded.dependsOn {

jme3-examples/build.gradle

@@ -63,7 +63,8 @@ jar.doFirst{
 
 task dist (dependsOn: ['build', ':jme3-jogl:jar', ':jme3-bullet:jar', ':jme3-android:jar', \
                        ':jme3-android-native:jar', ':jme3-bullet-native-android:jar', \
-                       ':jme3-bullet-native:jar']) << {
+                       ':jme3-bullet-native:jar']) {
+    doLast {
         // Copy all dependencies to ../dist/lib, remove versions from jar files
         configurations.compile.resolvedConfiguration.resolvedArtifacts.each { artifact ->
             copy {
@@ -128,4 +129,5 @@ task dist (dependsOn: ['build', ':jme3-jogl:jar', ':jme3-bullet:jar', ':jme3-and
             into '../dist/opt/native-bullet'
             rename {project(':jme3-bullet-native-android').name+".jar"}
         }
+    }
 }