Change prototype of dvbpsi_PushPacket() to return bool iso void

Do not check continuity counter when this PID has not been seen before.
This used to produce false positives.

SCTE 35 2004 section 7.2 describes the following Splice Commands:
- 0x00 splice_null
- 0x04 splice_schedule
- 0x05 splice_insert
- 0x06 time_signal
- 0x07 bandwidth_reservation

Make use p_current->b_syntax_indicator and p_current->b_private_indicator are used as booleans.

- Use bool for structure members that are used as bools
- Indentation

- Use bool for structure members that are used as bools
- Indentation

- Use bool for structure members that are used as bools
- Indentation

- Use bool for structure members that are used as bools
- Indentation

The dvbpsi_decoder_t members b_discontinuity and b_complete_header are used as a boolean.

Simplify code by using dvbpsi_HasDecoder().

The function dvbpsi_HasDecoder(dvbpsi_t *handle) returns 'true' when a decoder has been attached to this dvbpsi handle. If the handle is not valid or no decoder is attached, then it will return 'false'.

- Use bool for structure members that are used as bools
- Indentation

- Use bool for structure members that are used as bools
- Indentation

The dvbpsi-info tool provides information about the DVB PSI tables in
DVB and MPEG-TS streams (or files). It uses libdvbpsi to gather all
information and prints it to stdout.

- Use bool for structure members that are used as bools
- Indentation

- Use bool for structure members that are used as bools
- Indentation

- Introduce bool for things that are used as bools
- Indentation

Remove executable bit.

Check mallocs return value.

- Add pointer to dvbpsi_t * to dvbpsi_BuildPSISection()
- Make dvbpsi_ValidTOTSection() return a boolean
- Make dvbpsi_ValidPSISection() return a boolean

Less duplicate code.

- dvbpsi_AttachDemux()
- dvbpsi_AttachPAT()
- dvbpsi_AttachPMT()
- dvbpsi_AttachSDT()
- dvbpsi-AttachCAT()
- dvbpsi-AttachBAT()
- dvbpsi-AttachEIT()
- dvbpsi-AttachNIT()
- dvbpsi-AttachTOT()
- dvbpsi-AttachSIS()

Even when sys/time.h exists the function gettimeofday is not picked up
by this configure script. The example/decode_mpeg.c program compiles
fine when sys/time.h is present.

The cleanup paths forgot to cleanup the libdvbpsi handles.

The cleanup paths forgot to cleanup the allocated libdvbpsi handles.

The assert fired on the p_dvbpsi->p_private being NULL, while it should
have reacted on p_dvbpsi->p_private not being NULL. When the handle to
libdvbpsi (holding msg callback) is being deleted NO decoder maybe attached.

Fixed:
- bug in discontinuity counter signalling (ignore null packets)
- check for TS sync word

The source file had executable permissions which is inappropriate for source code files.