Added typescript.

Nedyalko Nikolov · web-flow · commit e508452634b8 · 2016-07-15T14:40:52.000+03:00
Adding typescript, because build is complaining that there is no tsc (even when it is executed 2 times before).
diff --git a/.travis.yml b/.travis.yml
@@ -49,6 +49,7 @@ script:
 
 before_deploy:
 - cd ../nativescript-angular
+- npm install typescript -g
 - npm install
 - node ../build/travis-scripts/add-publishConfig.js next
 
