Erro ao executar o comando ant jetty.run.
Segue partes das mensagens de erro:
[ivy:retrieve] :::: ERRORS
[ivy:retrieve] SERVER ERROR: HTTPS Required url=http://repo1.maven.org/maven2/br/com/caelum/vraptor/3.4.0/vraptor-3.4.0.pom
[ivy:retrieve] SERVER ERROR: HTTPS Required url=http://repo1.maven.org/maven2/br/com/caelum/vraptor/3.4.0/vraptor-3.4.0.jar
