This package requires pocketsphinx and python (tested on 2.7)

How to install Pocketsphinx
Install required packages
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install bison libasound2-dev python-dev swig

Compile other packages from source
wget http://downloads.sourceforge.net/project/cmusphinx/pocketsphinx/5prealpha/pocketsphinx-5prealpha.tar.gz
tar xvf pocketsphinx-5prealpha.tar.gz
wget http://downloads.sourceforge.net/project/cmusphinx/sphinxbase/5prealpha/sphinxbase-5prealpha.tar.gz
tar xvf sphinxbase-5prealpha.tar.gz

The keyphrase.list file should look like this, one phrase per line with threshold:
open the door /1e-40/
close the door /1e-40/
how are you /1e-30/