CAS-1199 for 3.5.x : remove log4j-over-slf4j dependency in cas-server-core
CAS-1199 for 3.5.x : remove log4j-over-slf4j dependency in cas-server-core

apereo/cas,pdrados/cas,fogbeam/cas_mirror,pdrados/cas,fogbeam/cas_mirror,rkorn86/cas,apereo/cas,fogbeam/cas_mirror,leleuj/cas,fogbeam/cas_mirror,philliprower/cas,leleuj/cas,philliprower/cas,leleuj/cas,pdrados/cas,philliprower/cas,apereo/cas,leleuj/cas,apereo/cas,pdrados/cas,apereo/cas,fogbeam/cas_mirror,rkorn86/cas,Jasig/cas,fogbeam/cas_mirror,apereo/cas,rkorn86/cas,philliprower/cas,leleuj/cas,philliprower/cas,apereo/cas,pdrados/cas,leleuj/cas,philliprower/cas,pdrados/cas,Jasig/cas,philliprower/cas,rkorn86/cas,Jasig/cas,Jasig/cas