gist eclipse integration.

default key settings.
 Ctrl+5 create private gist
 Ctrl+6 create public gist

this is a inspired by
 http://github.com/defunkt/gist.el

eclipse update site is
 http://dev.handwerkszeug.org/eclipse/3.6/org.handwerkszeug.update/

this software under Apache License 2.0
 http://www.apache.org/licenses/LICENSE-2.0.txt

Required Environment
 eclipse3.6 or higher
 Java6 (tested by 1.6.0_17 64bit)