zabbix: update to zabbix 3.0.1

zabbix-agent doesn't exist anymore since 3.0

'-f' option (foreground) is now in zabbix-agentd

003-change-user-and-foreground.patch fixes pending
issue https://support.zabbix.com/browse/ZBX-10611

you might need to update your config file to add
LogType=system

Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>

admin/zabbix/patches/002-uclibc_loadavg.patch

@@ -1,8 +1,8 @@
 --- a/src/libs/zbxsysinfo/linux/cpu.c
 +++ b/src/libs/zbxsysinfo/linux/cpu.c
-@@ -62,6 +62,45 @@ int	SYSTEM_CPU_DISCOVERY(AGENT_REQUEST *
- 	return SYSINFO_RET_OK;
- }
+@@ -22,6 +22,45 @@
+ #include "stats.h"
+ #include "log.h"
  
 +
 +/* uclibc and dietlibc do not have this junk -ReneR */