Issue #399 - Use LinkedHashSet in CssClassNames to preserve the order of the CSS classes.

Java 8 uses new hashing algoritm in Hash(Map|Set) and this makes tests fail when run in Java 7 vs Java 8
Fixes #399 - Disable javadoc lint when building with Java 8

http://mail-archives.apache.org/mod_mbox/maven-users/201403.mbox/%3CCANWgJS5xHWiGE+Lecey+mZVbj9Via4JUWsaBeZtQr2aQNebupA@mail.gmail.com%3E
http://blog.joda.org/2014/02/turning-off-doclint-in-jdk-8-javadoc.html
Fixes #396 - Update Google theme to 3.2.0
Merge branch 'master' into 390-less-package-scoped