some modification, init ExchangeController unitTest
Merge branch 'master' of https://github.com/loclamor/nuit2013
merge
merge
Merge branch 'master' of https://github.com/loclamor/nuit2013
Merge branch 'master' of https://github.com/loclamor/nuit2013
Merge branch 'master' of https://github.com/loclamor/nuit2013
Merge branch 'master' of https://github.com/loclamor/nuit2013
merge
Merge branch 'master' of https://github.com/loclamor/nuit2013
merge
Merge branch 'master' of https://github.com/loclamor/nuit2013
bug fix in test case (AlgorithmeRatingService)