remove pause and resume seems to fix error

I also ran into #4. I know next to nothing about node streams, but after reading this http://stackoverflow.com/questions/18306954/cannot-switch-to-old-mode-now-node-js-apn-module-error-in-tls-connect-functi I figured I would try removing the pause/resume, which *seems* to have solved the problem. No idea if this is even a good idea, but for me everything seems to work as expected :)