New script that watch for file events

Created a python script that will watch events on files that match a
given pattern. And when an event is fired, it will execute a defined
command.
Create attributes to setup the file watcher service
Create an runit service to run the file watcher script
Update uWSGI to behave as a production environment
Reuse python_pip LWRP through a hash of modules
Update watcher script with logging options

Added two new options:

* `quiet`: Decrease output verbosity
* `log-to-file`: To also redirect output to a log file
Update the watcher daemon to not print anything