Merge pull request #126 from NativeScript/dtodorov/xcode-10

chore: bump xcode to 10.0, add pip install script

Author: DimitarTodorov

.travis.yml

@@ -20,8 +20,8 @@ matrix:
     - stage: "WebPack and Build"
       os: osx
       env:
-        - WebpackiOS="11"
-      osx_image: xcode9.2
+        - WebpackiOS="12.0"
+      osx_image: xcode10.0
       language: node_js 
       node_js: "8"
       jdk: oraclejdk8
@@ -46,9 +46,9 @@ matrix:
         - "curl -u $SAUCE_USER:$SAUCE_KEY -X POST -H 'Content-Type: application/octet-stream' $ANDROID_SAUCE_STORAGE --data-binary @$ANDROID_PACKAGE_FOLDER/app-debug.apk"
     - os: osx
       env: 
-        - BuildiOS="11"
-        - Xcode="9.2"
-      osx_image: xcode9.2
+        - BuildiOS="12.0"
+        - Xcode="10.0"
+      osx_image: xcode10.0
       language: node_js 
       node_js: "8"
       jdk: oraclejdk8
@@ -68,7 +68,7 @@ matrix:
         - travis_retry npm run e2e -- --runType android23 --sauceLab --reuseDevice --appPath $ANDROID_PACKAGE
     - os: linux
       env: 
-        - iOS="10"
+        - iOS="12.0"
       language: node_js 
       node_js: "8"
       script: 
@@ -85,7 +85,11 @@ android:
     - android-23
     - extra-android-m2repository
 
+before_install:
+    - sudo pip install --upgrade pip
+    - sudo pip install six
+
 install:
     - npm install -g nativescript
     - tns usage-reporting disable
-    - tns error-reporting disable
+    - tns error-reporting disable