Add sensitive config options.
Fix glaring inconsistency in `rake stop`
Merge branch 'add-bundler-and-rake-tasks'

Add fix :)
Add example config for sensitive params

`cp .env.example .env` to run the application..
Ignore pidfile
Regroup Rake tasks

- Add server namespace and put stop/start into it. You can now
  call these tasks with `server:stop` and `server:start`.
- Add server task which toggles between stop & start based on
  existance of a PID file.
- Add logs:purge task for removing & retouching the `log` file
  at the root of the repo.
Add in Rakefile changes from PR.

Merge branch 'add-bundler-and-rake-tasks'