Avoid org.objectweb.asm from cglib
https://issues.jboss.org/browse/JDF-612 fixed value of version.jboss.as property
Cleaned up CSS.

Removed rules that were no longer needed.
[JDF-626 / WFK2-430] Update WFK version to 2.5 and Spring version to 4.0 in the README for spring-kitchensink-*.
[JDF-627 / WFK2-431]
Update WFK version to 2.5 and Spring version to 4.0 in the README for
spring-greeter and spring-petclinic.
Fix wording in the README to explain how to change the data access
strategies.