add open_source_license.txt
Signed-off-by: Henry Chen <hchen@vmware.com>
add mysql support and make it default
Merge pull request #26 from Henry-CF/license

add open_source_license.txt
use node08 as runtime
Merge branch 'master' of https://github.com/vmw-tmpst/heroapp-TeenyURL into mysql
correct sequelize-mysql version
fix mysql column key issue
update .travis.yml
Merge pull request #27 from easeway/mysql

add mysql support and make it default