Fixed syntax errors in travis.yml
Fixed syntax errors in travis.yml

jonnguy/HSTracker,mattwelborn/HSTracker,jonnguy/HSTracker,bmichotte/HSTracker,ifeherva/HSTracker,bmichotte/HSTracker,mattwelborn/HSTracker,mattwelborn/HSTracker,ifeherva/HSTracker,jonnguy/HSTracker,mattwelborn/HSTracker