Travis-CI: create zip dist as part of build

.travis.yml

@@ -19,7 +19,12 @@ notifications:
     rooms:
       secure: "PWEk4+VL986c3gAjWp12nqyifvxCjBqKoESG9d7zWh1uiTLadTHhZJRMdsye36FCpz/c/Jt7zCRO/5y7FaubQptnRrkrRfjp5f99MJRzQVXnUAM+y385qVkXKRKd/PLpM7XPm4AvjvxHCyvzX2wamRvul/TekaXKB9Ti5FCN87s="
 
-before_install:
+install:
+  -  ./gradlew assemble
+script:
+  - ./gradlew check
+  - ./gradlew createZipDistribution
+# before_install:
   # required libs for android build tools
   # sudo apt-get update
   # sudo apt-get install -qq p7zip-full