core: Remove JBoss specific logging from bll

Removed the usage of JBoss specific implementation from bll tests'
logging configuration and replaced it with standard log4j configuration
for better portability and simplicity.

Change-Id: I6988196004df741f37ce4971327c005e068cca5b
Signed-off-by: Allon Mureinik <amureini@redhat.com>