ci(travis): update discovery environment id

Author: Anwesha Naskar

.travis.yml

@@ -5,7 +5,7 @@ node_js:
 - 6
 - stable
 before_install:
-- '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && openssl aes-256-cbc -K $encrypted_7f9951a7b27b_key 
+- '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && openssl aes-256-cbc -K $encrypted_7f9951a7b27b_key
   -iv $encrypted_7f9951a7b27b_iv -in auth.js.enc -out test/resources/auth.js -d ||
   true'
 - npm install -g typescript