disocdb: ddb_list: check the maximum number of entries, more efficient realloc policy
disocdb: ddb_list: check the maximum number of entries, more efficient realloc policy

oldmantaiter/disco,mozilla/disco,discoproject/disco,pombredanne/disco,mwilliams3/disco,simudream/disco,discoproject/disco,ktkt2009/disco,simudream/disco,seabirdzh/disco,ktkt2009/disco,pooya/disco,pombredanne/disco,ErikDubbelboer/disco,pooya/disco,seabirdzh/disco,ErikDubbelboer/disco,mwilliams3/disco,simudream/disco,pavlobaron/disco_playground,beni55/disco,beni55/disco,scrapinghub/disco,oldmantaiter/disco,mozilla/disco,oldmantaiter/disco,pavlobaron/disco_playground,pombredanne/disco,discoproject/disco,oldmantaiter/disco,mwilliams3/disco,pavlobaron/disco_playground,seabirdzh/disco,mwilliams3/disco,oldmantaiter/disco,simudream/disco,beni55/disco,mwilliams3/disco,seabirdzh/disco,scrapinghub/disco,ErikDubbelboer/disco,discoproject/disco,ErikDubbelboer/disco,beni55/disco,ktkt2009/disco,scrapinghub/disco,pooya/disco,discoproject/disco,simudream/disco,mozilla/disco,ktkt2009/disco,mozilla/disco,pavlobaron/disco_playground,pombredanne/disco,beni55/disco,pooya/disco,pombredanne/disco,ktkt2009/disco,ErikDubbelboer/disco,seabirdzh/disco,scrapinghub/disco