Added a functionality that makes the Brog write it's PID in a file when in prod mode
Stuff the writePID stuff inside of the brog itself.
Fix imports. Add pid to brog struct
Minor fixes per Antoine. Use ioutil.WriteFile

A whitespace issue.
Add suitable Star Trek reference. I'm really not good at this.
Minor formatting issues.
Merge pull request #27 from uiri/pid

Write process ID to file.