Added snapshot and uglify checks in the travis webpack builds.

Author: Dimitar Tachev

.travis.yml

@@ -16,14 +16,14 @@ matrix:
       language: node_js 
       node_js: "6"
       jdk: oraclejdk8
-      script: cd demo && npm run build.plugin && npm i && npm run build-ios-bundle && cd ../demo-angular && npm i && npm run build-ios-bundle
+      script: cd demo && npm run build.plugin && npm i && npm run build-ios-bundle -- --uglify --snapshot && cd ../demo-angular && npm i && npm run build-ios-bundle -- --uglify --snapshot
     - language: android
       os: linux
       env:
         - Platform="Android"
       jdk: oraclejdk8
       before_install: nvm install 6.10.3
-      script: cd demo && npm run build.plugin && npm i && npm run build-android-bundle && cd ../demo-angular && npm i && npm run build-android-bundle
+      script: cd demo && npm run build.plugin && npm i && npm run build-android-bundle -- --uglify --snapshot && cd ../demo-angular && npm i && npm run build-android-bundle -- --uglify --snapshot
     - env: 
         - BuildAndroid="26"
       language: android
@@ -49,6 +49,7 @@ android:
     - tools
     - platform-tools
     - build-tools-26.0.1
+    - android-23
     - android-26
     - extra-android-m2repository
     - sys-img-armeabi-v7a-android-21