This variable is used to signal configuration reload by
SIGHUP signal and over command socket so the new name is
better suited.

mrtgInit() is not checking if filename parameter is NULL so
when dvblast is run without -Z option that sets mrtg file
the following error is seen in valgrind:

 Syscall param open(filename) points to unaddressable byte(s)
    at 0x412798E: __open_nocancel (in /lib/libc-2.13.so)
    by 0x40BCA33: __fopen_internal (in /lib/libc-2.13.so)
    by 0x40BCA9B: fopen@@GLIBC_2.1 (in /lib/libc-2.13.so)
    by 0x8062841: mrtgInit (mrtg-cnt.c:167)
    by 0x4073DB5: (below main) (in /lib/libc-2.13.so)

This patch fixes compilation warnings related to ssize_t when
dvblast is compiled on 64 bit machine. The fixed warnings are:

comm.c: In function "comm_Read":
comm.c:86:18: warning: format "%d" expects type "int", but argument 3 has type "ssize_t"
comm.c:168:14: warning: format "%d" expects type "int", but argument 5 has type "ssize_t"

dvblastctl.c: In function "main":
dvblastctl.c:248:18: warning: format "%d" expects type "int", but argument 3 has type "ssize_t"

The tmpnam(3) is used correctly but in order to avoid stupid
GNU linker from complaining, rewrite the code to use mkstemp(3).

* Makefile: Removed old kernel include, since kernel headers have had the S2API headers for a long time now.

Before this patch TS discontinuity and transport_error warnings
were missing vital info that can help to pinpoint stream problems.
The messages were looking like this:

warning: TS discontinuity
warning: transport_error_indicator on pid 1234

With this patch a lot useful info is added to the messages. PID,
how much continuity counters differ, service id and stream type.
The changed messages look like this:

transport_error_indicator on pid %hu

warning: TS discontinuity on pid  514 expected_cc  1 got 11 (H.264/14496-10 video (MPEG-4/AVC), sid 2005)
warning: TS discontinuity on pid   48 expected_cc 15 got 12 (EMM, sid 0)
warning: TS discontinuity on pid  774 expected_cc  0 got  2 (13818-3 audio (MPEG-2), sid 2015)
warning: TS discontinuity on pid    0 expected_cc 11 got 12 (PAT, sid 0)
warning: TS discontinuity on pid 2000 expected_cc 13 got 14 (PMT, sid 2020)
warning: transport_error_indicator on pid 2000 (PMT, sid 2020)

* dvbiscovery.sh: NIT can take longer than 15s. * dvbiscovery_dvb-s.conf: Change transponder list for a better efficiency.

* dvbiscovery: Support adapters with multiple frontends. * dvblast, dvblastctl: Trust the process's umask. * en50221.c: In XML mode, output the name of the CAM.

* demux.c, dvblast.c: New --select-pmts parameter which sets a demux filter on all PMTs (intermediate between normal mode and budget mode).

DVBlast hangs when dvb_Reset() in ASI mode. When using ASI as input there is no
need to reset the device and especially resetting a DVB device is wrong. Therefor
abstract the call to dvb_Reset() and replace it with pf_Reset(). Also the udp input
is adapted to provide a function for pf_Reset(). Both asi_Reset() and udp_Reset()
do nothing.