Fixed two bugs. Not specified in TT.
1.Ranges which coincided with region borders (achieved by the context menu commands like Move Range Start/End ... ) used to cut a small byte of region which border coincided.
2. If you cover region with a range which start coincides with region's start and ends coincides as well when you drag such range it does cut the whole region, but it does not remove it. Process similar to "copy" accures when "cut" operation is expected.