Comments in CSPold
Add CSPAsker interface to Scenario ; doesn't build

Scenario now implements the CSPAsker light interface, and CSP is
rewritten according to this new interface, but due to some C++
minsunderstandings, it doesn't compile right now.
Fixing a crash into setStartEvent and into setEndEvent
Working on CSP
Merge branch 'master' of https://github.com/OSSIA/Score
Meging the work done by Clement on CSP