Compile FLVTool++ on Ubuntu 12.04

#root
apt-get install libboost-all-dev scons

mkdir /usr/local/src/flvtool++
cd /usr/local/src/flvtool++
wget http://ffmpeg-install-centos.googlecode.com/files/flvtool%2B%2B-1.2.1.tar.gz
tar xvzf flvtool++-1.2.1.tar.gz
scons
cp flvtool++ /usr/local/bin/