Add travis-ci configuration.
Add travis-ci configuration.

naumchenko/pm2-cookbook,jarosser06/pm2-cookbook,Mindera/pm2-cookbook,Mindera/pm2-cookbook,jarosser06/pm2-cookbook,naumchenko/pm2-cookbook,naumchenko/pm2-cookbook,jarosser06/pm2-cookbook,Mindera/pm2-cookbook