0.1.5

• Vignette updated
• changed default max.iters from 200 to 500.
• now coco objects store information about optim.control arguments for full reproducibility.
• introduce a two-step optimization approach for automatic model selection. See help(coco).
• small bug fixed in getDensityfromDelta
• small bug fixed in examples for cocoOptim and cocoPredict
• added show method for coco objects
• added codecov unit tests