11-02-2018: New realese: bugs fixed, vignettes added, general code cleanup performed.

04-10-2018: UI is imporved. Manuals are rechecked.

03-31-2018: Forced interactive launch function is now added. Minor errors are fixed.

03-26-2018: A minor error in the examples is resolved.

03-20-2018: The new release contains auxilary functions for manual ROI processing.

03-16-2018: The very first version of xROI R package is just released!