Version 0.5.1
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- bug in profile.gcmr fixed

Version 0.5.0
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- box constraints for the parameters can be easily specified in marginal and cormat
- switched to the .Call interface; C functions are now registered.
- renamed marginal$sim to marginal$q (this method is yet unused in the exported interface)

Version 0.4
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- long marginal name (gaussian not gs, poisson not ps)
- added Gamma and Weibull marginals 
- added type="independence" to cluster.cormat  
- 'marginal' and 'cormat' arguments can be resolved in 'data'
- optimization warning are given only for the final call of the
numerical optimization routine