Rename RTPanalyze to rtp_analyze and remove old version

The tool RTPanalyze (used to process an input RTP dump into a
text file of RTP header info) was present in both the neteq and
neteq4 folders. This change pulls in changes from the old to the new
and renames the source file and tool to rtp_analyze.

Removing special code for dummy-rtp files (it is supported without
special code), and making the RED payload type settable using flags.

Moving from test/ to tools/ folder.

BUG=2692
R=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/10789004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5832 4adac7df-926f-26a2-2b94-8c16560cd09d
Remove webrtc_unittest.cc from talk presubmit script.

BUG=
R=mallinath@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/11059004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5833 4adac7df-926f-26a2-2b94-8c16560cd09d
Check the return value of the FromString call and return failure when then value is invalid. I.e. uses
bool FromString(const std::string& s, T* t)
instead of
T FromString(const std::string& str)

Before this change we will silently continue the parsing and take whatever default value returned by FromString.

TEST=new tests
BUG=2507
R=mallinath@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/11069004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5834 4adac7df-926f-26a2-2b94-8c16560cd09d
(Auto)update libjingle 64147530-> 64247466

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5835 4adac7df-926f-26a2-2b94-8c16560cd09d