Modify spec file to support a user-defined config.js rather than using exampleConfig.js.  Moved config.js and statsd-init to sources directory.
Modify spec to install config.js (SOURCE2) from SOURCES dir.  Also, use post hook to start the service after installing the rpm.
Update README to support new sources dir, use the example config.js.
Merge pull request #5 from brightcove/master

Easier to modify config.js
Updated statsd.specs, README.md and statsd init script to support the latest stasd release v0.7.0
Updating and fixing example config files for 0.7 so that README can be followed

- Updated config.js from 0.7 tarball so that more documentation is in place.
  Preserved host in case people are relying on that
- Copied exampleProxyConfig.js verbatim fron 0.7 tar ball
- Replaced line in readme where exampleConfig.js was referenced, preferring
  to simply copy config.js instead