update link to javadoc, issue #135 [skip ci]
remove doc (code documentation) from project, it is now generated by Travis on build and automatically updated on the website, issue #135 [skip ci]
update copyright notice, issue #135 [skip ci]
update Changelog : Update JavaDoc on website (gh-pages) after a successful Travis CI build, close #135 [skip ci]
improve ChangeLog layout [skip ci]