Update .travis.yml

Author: juanpedromoreno

.travis.yml

@@ -7,8 +7,9 @@ script:
 - sbt test
 
 before_install:
-- openssl aes-256-cbc -K $encrypted_67a12a6ee84a_key -iv $encrypted_67a12a6ee84a_iv
-  -in secring.gpg.enc -out secring.gpg -d
+- if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then
+     openssl aes-256-cbc -K $encrypted_67a12a6ee84a_key -iv $encrypted_67a12a6ee84a_iv -in secring.gpg.enc -out secring.gpg -d;
+  fi
 
 after_success:
 - if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then