New upstream version 3.3.0

.travis.yml

pom.xml

src/main/java/org/codehaus/plexus/util/AbstractScanner.java

src/main/java/org/codehaus/plexus/util/DirectoryScanner.java

src/main/java/org/codehaus/plexus/util/Scanner.java

src/main/java/org/codehaus/plexus/util/cli/Commandline.java