Fix rubygems warnings
Merge branch 'master' of github.com:dedesite/psi_rng
rng : Heavy refactoring

- Cut the program into 3 files : qrand, fifo and rng
- Remove the time adjustement functions
- Remove all unesessary globals
- qrand abstract the use of the raspberry pi and GPIO configuration
rng : Re-add signal interception
rng_server : little cleanup

-Remove unesessary constants
-fifo : add a mode option for the fifo
-adopt a more C style programming...slowely