Descriptor 0x62: Support for different deliveries

Fixes incorrect check for payload_offset

Include stdint.h for intXX_t

Make Makefile more friendly to packaging

See http://github.com/gfto/libtsfuncs/issues/2

Fix ts_crc32_section return type

There's no such type u_int32_t, and the declaration uses correct uint32_t

I don't know a machine where sizeof(void *) != sizeof(struct x *)
but let's make clang checker happy anyway.

Without this check broken transport streams that start new tables
before finishing old ones cause psi gathering to fail.

When 1 byte of the section was in the next TS packet, section
gathering misses it.

Add support for detecting SECA, VIACCESS, VIDEOGUARD,
NAGRA and DRECRYPT. That should cover the most used CA
systems.