Update list for Holdkey

Holdkey 3.0 changelog from May 17, 2015

Important bug fixes.
Holdkey now also works on multi user systems.
Better intergration of greek characters (Holdkey + 9).
Copy/Paste plain text only (Ctrl-Win-V).
Added Bitcoin and other crypto currency symbols.

Holdkey 2.1 changelog from September 3, 2013

Bug fixes and minor improvements

Holdkey 2.0 changelog from March 1, 2012

new features and improvements

Put a free download button on your own website

HOLDKEY DOWNLOAD

Support Holdkey, just copy+paste this html: