Move webrtc/{tools => rtc_tools}

webrtc/tools/barcode_tools/README

-This file explains how to get the dependencies needed for the barcode tools.
-
-barcode_encoder.py
-==================
-This script depends on:
-* Zxing (Java version)
-* Ant (must be installed manually)
-* Java
-
-To automatically download Zxing for the encoder script, checkout this directory
-as a separate gclient solution, like this:
-gclient config http://webrtc.googlecode.com/svn/trunk/webrtc/tools/barcode_tools
-gclient sync
-Then the Zxing Java source code will be put in third_party/zxing.
-
-In order to run barcode_encoder.py you then need to build:
-* zxing/core/core.jar
-* zxing/javase/javase.jar
-These are compiled using Ant by running build_zxing.py:
-python build_zxing.py
-
-For more info about Zxing, see https://code.google.com/p/zxing/
-
-
-barcode_decoder.py
-==================
-This script depends on:
-* Zxing (C++ version). You need to checkout from Subversion and build the libs
-  and zxing SCons targets. SVN URL: http://zxing.googlecode.com/svn/trunk/cpp
-* FFMPEG fmpeg 0.11.1
-
-These dependencies must be precompiled separately before running the script.
-Make sure to add FFMPEG to the PATH environment variable and provide the path
-to the zxing executable using the mandatory command line flag to the script.