add slf4j jcl dependency to wro4j-examples
add slf4j jcl dependency to wro4j-examples

wro4j/wro4j,dacofr/wro4j,UAK-35/wro4j,dacofr/wro4j,dacofr/wro4j,dacofr/wro4j,UAK-35/wro4j,UAK-35/wro4j,UAK-35/wro4j,wro4j/wro4j,wro4j/wro4j