Pigdin user casting plugin

Lates version of the plugin is available at:
https://github.com/santa01/usercast

Usercast copies the nickname you've double clicked in the conference chat and
pastes it into a conversation's entry field. Plugin requires pidgin development
package to be installed (which usually pulls is libpurple dev package, as well
as glib and gtk+).

If you are interested in the plugin, you can contact me via santa.ssh@gmail.com

The plugin is licensed under MIT license, see COPYING for details.