[version] bumped to version 3.6.0.

Author: Andrer757

.travis.yml

@@ -19,13 +19,13 @@ cache:
 android:
   components:
     - tools
-    - build-tools-25.0.3
+    - build-tools-27.0.3
     - platform-tools
     - extra-android-m2repository
     - extra-google-m2repository
     - extra-google-android-support
-    - android-25
-    - sys-img-armeabi-v7a-android-25
+    - android-27
+    - sys-img-armeabi-v7a-android-27
 
 licenses:
   - 'android-sdk-preview-license-.+'