.travis.yml in trackler-2.0.3.5

- old
+ new

@@ -1,9 +1,10 @@
 language: objective-c
 osx_image: xcode7.3
 xcode_project: 'xcodeProject/ObjectiveC.xcodeproj'
 xcode_scheme: 'xobjectivecTest'
 before_install:
+  - gem install bundler
   - gem install danger
   - brew cask uninstall oclint
   - brew tap oclint/formulae
   - brew install oclint
 script: