Merge pull request #5 from mrmcd/master

Fix for issue #4 to throw IllegalArgumentException on bad data
Updated NEWS for 2.0.1.
[maven-release-plugin] prepare release yubico-validation-client-2.0.1
[maven-release-plugin] prepare for next development iteration
Updated NEWS port 2.0.1 release.
Made build-homepage.sh work with mvn3 if mvn is missing.
Merge pull request #1 from Yubico/master

update