Get site working for maven 3.3, jdk8.

Maven 3.3 needs updated site plugin because of changed Doxia dependencies.

JDK8 javadoc has a bug for HTML kbd tag; disable lint.
Merge branch 'master' of github.com:pholser/jopt-simple into develop
GH-35 Add site docs.
Revert "Add facade to parser."

This reverts commit 47d635ecfd56124e558709c00748bca318bc8dbd.
Merged develop.