travis/before_install.sh
sudo apt-get update -qq
# leveldb => libleveldb-dev libsnappy-dev
# rgeo =>
# postgres + postgis => postgresql-contrib-9.3 postgresql-9.3-postgis-2.1-scripts
sudo apt-get install -qq libgeos++-dev libproj-dev build-essential liblzo2-dev liblzma-dev zlib1g-dev libprotobuf-c0-dev postgresql-contrib-9.3 postgresql-9.3-postgis-2.1-scripts libprotobuf-c0 zlib1g libleveldb-dev libsnappy-dev