Branch 1.4 - minor modifications

Hi,
this is my first commits ever ... so please be indulgent if something is wrong in it and feel free to inform about how it should have been done :-)

I commited two modifications : 
- one modification enabling debug logging for the checks launched by the poller
- one for Windows command line scripts I developed to manage the Shinken start/stop and to display "quite" nice consoles for all running daemons. Please see attached picture

 Best regards, Fred.
![capture](https://f.cloud.github.com/assets/2932687/612846/7d73c858-cdf5-11e2-95df-86f9192ea17f.png)