SEC-2556: Fix @Import example in manual
SEC-2547: Consistent CAS client version
Revert "SEC-2547: Consistent CAS client version"

This reverts commit f6cc9d87d5d85d8ea4c01696cbcd6f88ff558dca.
SEC-2558: Fix failing ApacheDSContainerTests when port is taken
SEC-2560: Remove samples from .gitignore and add missing sample files