[rubis] (new:minor) Added some function to work with dates in RubisUtility and use them in RegisterItemOperation
[rubis] (bug-fix:minor) Attribute 'maxBid' is a float, not an int.
[rubis] (new:minor) Added new configuration parameter 'maxItemBaseBidPrice'.
[rubis] (new:minor) Added method to retrieve the number of items for a given
category.
[rubis] (new:minor) Random generation of categories follows the distribution of
the number of items inside each category. To do so, we introduced a new small
class (DiscreteDistribution) used to generated random number according to a
tabular discrete distribution. Note, the method used to generate quantiles is
not the best one available, but it works.
[rubis] (new:major) Class to populate the RUBiS database (a useful step to be
done before running a RUBiS-RAIN experiment).