Log Message:
Upgrade from smokeping 1.3.x to 2.0.4
Ok'ed bouyer@
Lots of changes but in brief:

new probe programming interface
allow target-specific vars get defaults from Probes section
config file examples and smokeping_examples document
documentation updates and reorganizing
new commandline options '--config=X' and '--check'
Perl 5.8.0 compatibility fix
RRDtool 1.2.x compatibility fix ("unknown RRD version: 0003" on restart)

See this URL for all the details:
 http://people.ee.ethz.ch/~oetiker/webtools/smokeping/pub/CHANGES