updating build script

.travis.yml

@@ -7,8 +7,8 @@ before_install:
   - gem install compass
 
 before_script:
-  - mysql -e 'CREATE DATABASE IF NOT EXISTS mattermost_test ;'
+  - mysql -e "CREATE DATABASE IF NOT EXISTS mattermost_test ;"
-  - mysql -e 'GRANT ALL ON mattermost_test.* TO \'travis\'@\'%\' ;'
+  - mysql -e "GRANT ALL ON mattermost_test.* TO 'travis'@'%' ;"
 
 services:
   - redis-server