Revert codebase injection of the media attribute

update gwt-bootstrap to use the screen media for bootstrap.min.css an…

…d gwt-bootstrap.min.css

[maven-release-plugin] copy for tag gwt-bootstrap-2.3.2.0

[maven-release-plugin] copy for tag gwt-bootstrap-2.2.1.0

[maven-release-plugin] copy for tag gwt-bootstrap-2.0.4.0