Copy/cut has unexpected behavior

[lostpebble]

When copying/cutting text in the rich text example, and others, I noticed that it only copies/cuts the text itself but nothing else, also the entire pasted block of text takes on the style wherever the caret was sitting.

I used all the copy methods and got the same results (ctr+c, toolbar button, and right-click>copy), so I assume they all use the same method to copy/paste.

I think both the styles and text should be copied into the clipboard, and should allow for pasting into separate RichTextFX nodes if possible.

[TomasMikula]

This is a duplicate of #17.