added adaptive_dl_diff_target and changed intensity dropdown added ADMIN_keepalive script for AST_VDadapt.pl add field for target dial_level difference, -1 would target one agent waiting, +1 would target 1 customer waiting git-svn-id: svn://192.168.202.10@227 3d104415-ff17-0410-8863-d5cf3c621b8a