Merge pull request #4 from J-Christophe/master

Dev + update header license
fix eclipse project properties
build SITools way
Create README.md

First description about how to build the astronomy extension.
Update README.md
Update README.md
update org.restlet.patched to version 1.0.4
merge
Merge branch 'master' into master-github
merge readme.md
Logger unification
Copyright 2010-2014
Version 2.3.1