Update Gradle plugin and libraries versions

- LEARNER-6873
- Update Gradle Plugin version to 3.3.2
- Update gradle version(distribution) to 4.10.1
- Update build tools to 28.0.3 for both app and travis
- Update Support library version to 28.0.0
- Update Compile SDK version to 28

.travis.yml

@@ -15,9 +15,9 @@ android:
     - tools
     - platform-tools
     # The BuildTools version used
-    - build-tools-27.0.3
+    - build-tools-28.0.3
     # The SDK version used to compile the project
-    - android-27
+    - android-28
     # Required to define the system image for an Android-21 emulator to use
     # Reference: https://github.com/travis-ci/travis-ci/issues/6606#issuecomment-257090318
     - android-21

constants.gradle

@@ -1,8 +1,8 @@
 project.ext {
-    GRADLE_PLUGIN_VERSION = "3.1.3"
-    BUILD_TOOLS_VERSION = "27.0.3"
-    SUPPORT_LIBRARY_VERSION = "27.1.1"
-    COMPILE_SDK_VERSION = 27
+    GRADLE_PLUGIN_VERSION = "3.3.2"
+    BUILD_TOOLS_VERSION = "28.0.3"
+    SUPPORT_LIBRARY_VERSION = "28.0.0"
+    COMPILE_SDK_VERSION = 28
     // API Level that the application will target
     TARGET_SDK_VERSION = 27
     // Minimum API Level required for the application to run

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Apr 09 10:07:57 AMT 2018
+#Fri Mar 29 16:29:25 PKT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip