travis CHANGE build package only on master branch

Author: michalvasko

.travis.yml

@@ -56,4 +56,4 @@ script:
   - cd -
 
 after_success:
-  - if [ "$TRAVIS_OS_NAME" = "linux" -a "$CC" = "gcc" -a "$TRAVIS_ARCH" = "amd64" ]; then codecov; ./packages/create-package.sh; fi
+  - if [ "$TRAVIS_OS_NAME" = "linux" -a "$CC" = "gcc" -a "$TRAVIS_ARCH" = "amd64" -a "$TRAVIS_BRANCH" = "master" ]; then codecov; ./packages/create-package.sh; fi