Merge pull request #4 from cyrille-leclerc/master

Use GitHub CloudBees Community URLs
Merge pull request #5 from cyrille-leclerc/master

Demo of JaaS Authentication Realm based on jdbc-realm
Merge pull request #6 from cyrille-leclerc/master

Simplify Clickstart: remove bundling of mysql-connector-java  jar
Merge pull request #7 from cyrille-leclerc/master

Fix clickstart source URL + update clickstart display position