Get latest Gradle (ver. 4.10.2)

Recovery of Gradle build. 1 of N
Modified several apt configurationss and order of the build

.travis.yml

@@ -83,39 +83,42 @@ matrix:
             - g++-4.4
           sources:
             - ubuntu-toolchain-r-test
-      # Android
-#    - language: android
-#      android:
-#      addons:
-#        apt:
-#          update: true
-#      components:
-#        - tools
-#        - platform-tools
-#        - android-21
-#        - sys-img-armeabi-v7a-android-21
-#      env:
-#        - ANDROID=true
-#      before_install:
-#        - git submodule update --init --recursive
-#        - sudo apt-get install wget unzip tree
-#      install:
-#        # Accept SDK Licenses + Install NDK
-#        - yes | sdkmanager --update > /dev/null 2>&1
-#        - sdkmanager ndk-bundle > /dev/null 2>&1
-#        # Download Gradle 4.3.1 
-#        - wget https://services.gradle.org/distributions/gradle-4.3.1-bin.zip
-#        - mkdir -p gradle
-#        - unzip -q -d ./gradle gradle-4.3.1-bin.zip
-#        - export GRADLE=${TRAVIS_BUILD_DIR}/gradle/gradle-4.3.1/bin/gradle
-#      before_script:
-#        - bash $GRADLE --version
-#        - cd ./support
-#      script:
-#        - bash $GRADLE clean assemble
-#      after_success:
-#        - cd ${TRAVIS_BUILD_DIR}
-#        - tree ./libs
+     # Android
+    - language: android
+      addons:
+        apt:
+          update: true
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - wget
+            - unzip
+            - tree
+      android:
+        components:
+          - tools
+          - platform-tools
+          - android-21
+      env:
+        - ANDROID=true
+      before_install:
+        # Download/Install Gradle 
+        - wget https://services.gradle.org/distributions/gradle-4.10.2-bin.zip
+        - mkdir -p gradle
+        - unzip -q -d ./gradle gradle-4.10.2-bin.zip
+        - export GRADLE=gradle/gradle-4.10.2/bin/gradle
+        - bash $GRADLE --version
+      install:
+        # Accept SDK Licenses + Install NDK
+        - yes | sdkmanager --update > /dev/null 2>&1
+        - sdkmanager ndk-bundle > /dev/null 2>&1
+      before_script:
+        - pushd ./support
+      script:
+        - bash $GRADLE clean assemble
+      after_success:
+        - popd;
+        - tree ./libs
 
 before_script:
   - if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then export CXX=${COMPILER}; fi