update CI for NS 5+

Author: PeterStaev

.travis.yml

@@ -4,7 +4,7 @@ android:
   components:
     - tools
     - platform-tools
-    - build-tools-27.0.3
+    - build-tools-28.0.3
     - android-23
     - android-25
     - extra-android-m2repository
@@ -38,7 +38,7 @@ matrix:
       language: android
       os: linux
       env: 
-        - Android="26"
+        - Android="28"
       jdk: oraclejdk8
       before_install: nvm install 8.11.3
       script: "grunt ci:build:android"
@@ -47,18 +47,22 @@ matrix:
       os: osx
       env: 
         - iOS="10.3"
-        - Xcode="8.3"
-      osx_image: xcode8.3
+        - Xcode="9.4"
+      osx_image: xcode9.4
       language: node_js 
       node_js: "8"
       jdk: oraclejdk8
+      before_install:
+        - pip install --upgrade pip
+        - pip install --user --upgrade matplotlib
+        - pip install six
       script: "grunt ci:build:ios"
 
     - stage: webpack
       language: android
       os: linux
       env:
-        - Android="26"
+        - Android="28"
         - Platform="Android"
       jdk: oraclejdk8
       before_install: nvm install 8.11.3
@@ -68,12 +72,16 @@ matrix:
       os: osx
       env: 
         - iOS="10.3"
-        - Xcode="8.3"
+        - Xcode="9.4"
         - Platform="iOS"
-      osx_image: xcode8.3
+      osx_image: xcode9.4
       language: node_js 
       node_js: "8"
       jdk: oraclejdk8
+      before_install:
+        - pip install --upgrade pip
+        - pip install --user --upgrade matplotlib
+        - pip install six
       script: "grunt ci:webpack:ios"
 
     - stage: deploy
@@ -89,4 +97,4 @@ matrix:
             secure: 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
         skip_cleanup: true
         on:
-          branch: release
+          branch: release