Added changenodefreqpacket and requestiopacket + added application ID to identify ipsum messages

	modified:   makefile
	modified:   packet_test.cpp
	modified:   packets/libeladdnodepacket.cpp
	modified:   packets/libelchangefreqpacket.cpp
	new file:   packets/libelchangenodefreqpacket.cpp
	new file:   packets/libelchangenodefreqpacket.h
	modified:   packets/libeliopacket.cpp
	new file:   packets/libelrequestiopacket.cpp
	new file:   packets/libelrequestiopacket.h
Updated mainclass and zbreceiver to work with the new packets.
Added function to Sql to add a node and add sensor + retrieve a nodes address
(Working version)

	modified:   SerialCom/ZBReceiver.cpp
	modified:   SerialCom/ZBSender.cpp
	modified:   SerialCom/ZBSender.h
	modified:   mainclass.cpp
	modified:   mainclass.h
	modified:   sqlite/makefile
	modified:   sqlite/sql.cpp
	modified:   sqlite/sql.h
	modified:   sqlite/sqlTest.cpp
	modified:   sqlite/zigbee.dbs
Added some functions to Sql class + tested them in sql_test.cpp
(working version)

	modified:   errors.h
	modified:   sqlite/sql.cpp
	modified:   sqlite/sql.h
	modified:   sqlite/sqlTest.cpp
	modified:   sqlite/zigbee.dbs