Advance version to 0.1.4.
opus-tools typo
Bump version
Add more comments to opusdec.
Add MSVC makefiles to the dist tarball.
Avoid shadowing global symbol 'signal' on OSX.

On MacOS, stdlib.h ends up including sys/signal.h, generating
warnings about the local variables called 'signal' shadowing
the global symbol signal(3). So we avoid using that variable
name.
Hacky tool to sniff rtp traffic and write it to a file.

I wrote this for debugging, but hopefully it can grow into
a general opus rtp example, without pcap.
Abstract some of the header parsing on the captured packets.
Report only the RTP header fields.
Remove --speech and --music arguments from opusenc.

All these options do is bias the automatic mode selection in libopus,
but it seems that many people believe they select between LP and
MDCT modes, and it's very hard to convince them otherwise. As is they
aren't very useful, and they're creating a lot of confusion which
is distracting people from actually useful testing.
Add build support for opusrtp.c.

Detect libpcap and add it to the link line.

We should disable the pcap support if libpcap isn't available,
but the source doesn't do this. Instead it will fail to compile.
Fix prototype warnings.

Need to declare no arguments as func(void), not func().
Print each header on one line.

This makes the capture output a little less verbose
so it's easier to read. Also corrects the rtp payload
length (the udp header's size includes the udp header
bytes) and removes a redundant check for payload type
109.
Don't set eos on data packets.

Without this silly error, opusdec can play our output.
Check the return value of fwrite.

Fixes a gcc warning.
Move some of the header parsing logic into functions.

The code is a little cleaner now.

Also fixes a new warning created by the previous warning fix.
ifdef-protect the pcap code.

We don't want to break the build when libpcap isn't available,
and eventually we want this tool to send/receive rtp streams
as well as sniff them, so move the pcap-related code to a
separate function, which we only call if it's available.

This means that by default the programme does nothing.
Fix a config.h typo.
Merge branch 'rtp' from users/giles/opus-tools.git.
Use opus.m4 for autotools opus config to enable --with-opus=.