[Devel] new module: cfgutils

[Henning Westerholt]

Hello all,

i've added a new module into trunk, called "cfgutils". It provides functions 
for random number generation, to introduce execution delay of the server and 
make random decisions based on a probability value. 

The sleep functions can be used to work around buggy user agents or gateways, 
the random functions are useful for load shedding on server overload. For 
usage and configuration of this module please refer to the README file.

Credits for the sleep functions belongs to Carsten Bock, BASIS AudioNet GmbH.

Best regards,

Henning Westerholt