LinkSgfViewer-1.4 & SgfViewer 1.4

Changelog:
- Remove mouse events when cloning .sgf links.
- Prevents a property of a node to be applied twice.
- Change the way of inserting html code in host pages.

Download links:
- LinkSgfViewer for Firefox;
- SgfViewer for Google Chrome.

Enjoy,
Remus