Released version 0.4.2 of the library

A new version of the openModeller library is available. This release (0.4.2) contains some bugfixes and two new features:

• ROC curve was included in the model statistics (AUC is now automatically calculated by om_console, which generates pseudo-absence points if no real absence points are provided).
• Metric Chebyshev can be selected as a parameter in the Environmental Distance algorithm.

For developers, the Log object is now a singleton instead of a global variable.