-- reverse resolve network name and cache in route and ifconfig
applets, fix print nslookup server name if compile without
uClibc, fix route crashe 'route add', fix warnings compile
networking and pwd_grp applets
1) ping cleanup (compile fix from this patch already applied).
2) traceroute call not spare ntohl() now (and reduce size);
3) Fix for functions not declared static in insmod, ash, vi and mount.
4) a more simple API cmdedit :))
5) adds "stopped jobs" warning to ash on Ctrl-D and fixes "ignoreeof" option
6) reduce exporting library function index->strchr (traceroute), bzero->memset (syslogd)
