Added processing of second caller id.

New routing macht rule to filter second caller id.

Fixed extensions directory path.

"make clean" now cleans ".po" files.

Fixed unititialized variable bugs and compiler warnings.

	modified:   Makefile.am
	modified:   Makefile.in
	modified:   action.cpp
	modified:   apppbx.cpp
	modified:   callerid.c
	modified:   chan_lcr.c
	modified:   dss1.cpp
	modified:   dss1.h
	modified:   extension.c
	modified:   gentones.c
	modified:   ie.cpp
	modified:   mISDN.cpp
	modified:   message.h
	modified:   port.cpp
	modified:   route.c
	modified:   route.h
	modified:   socket_server.c
	modified:   tones.c
	modified:   trace.c