*_confchg_fn: make pointer params const, change *_entries to be size_t

• exec/main.c (confchg_fn):
• exec/quorum.h (sync_callback_fn_t):
• exec/sync.c (sync_ring_id, barrier_data_process)

(sync_start_init, sync_service_process, sync_primary_callback_fn)
(sync_deliver_fn, sync_confchg_fn):

• exec/sync.h (name):
• exec/totemmrp.c (totemsrp_handle_in, pg_confchg_fn)

(totemmrp_confchg_fn, totemmrp_initialize):

• exec/totemmrp.h (TOTEMMRP_H_DEFINED):
• exec/totempg.c (confchg_fn, totempg_confchg_fn)

(totempg_groups_initialize):

• include/corosync/engine/coroapi.h (tpg_init, confchg_fn)

(sync_abort):

• include/corosync/totem/totempg.h (TOTEMPG_SAFE):
• services/cfg.c (shutdown_reply, cfg_confchg_fn)

(message_handler_req_exec_cfg_ringreenable):

• services/cpg.c (api, cpg_confchg_fn):
• services/evs.c (MESSAGE_REQ_EXEC_EVS_MCAST, evs_confchg_fn):
• services/pload.c (MESSAGE_REQ_EXEC_PLOAD_MCAST)

(pload_confchg_fn):

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2029 fd59a12c-fef9-0310-b244-a6a79926bd2f